•1978.9~1982.7 哈尔滨工业大学无线电工程系通信工程专业，本科毕业并获工学学士学位； •1983.9~1986.7 哈尔滨工业大学无线电工程系通信工程专业，研究生毕业并获工学硕士学位； •2002.9~2005.11 哈尔滨工业大学电子与通信工程系通信与信息系统学科，获得工学博士学位。

•1986.7～至今，哈尔滨工业大学通信技术研究所，历任助教、讲师、副教授、教授，通信技术研究所移动通信室主任、航天专用通信系统重点实验室副主任，副所长 •1986.10～1990.3，作为高级访问研究员在日本京都大学从事移动通信技术研究

项目名称 认知无线电中基于图论和博弈论的联合频谱分配算法研究 项目来源 国家自然科学基金 开始时间 2011-01-01 结束时间 2013-12-01 项目经费 30万 担任角色 负责 项目类别 横向项目 项目状态 完成

论文标题 Joint power and spectrum allocation algorithm in cognitive radio networks 作者 Yutao Liu, Xuezhi Tan, Anna Auguste Anghuwo 期刊名称 Journal of Systems Engineering and Electronics 期卷 22(4) 简单介绍 The spectrum sharing problem between primary and cognitive users is mainly investigated.Since the interference for primary users and the total power for cognitive users are constrained,based on the well-known water-filling theorem,a novel one-user water-filling algorithm is proposed,and then the corresponding simulation results are given to analyze the feasibility and validity.After that this algorithm is used to solve the communication utility optimization problem subject to the power constraints in cognitive radio network.First,through the gain to noise ratio for cognitive users,a subcarrier and power allocation algorithm based on the optimal frequency partition is proposed for two cognitive users.Then the spectrum sharing algorithm is extended to multiuser conditions such that the greedy and parallel algorithms are proposed for spectrum sharing.Theory and simulation analysis show that the subcarrier and power allocation algorithms can not only protect the primary users but also effectively solve the spectrum and power allocation problem for cognitive users. 论文标题 Distributed multichannel medium access control protocol without common control channel for single-hopcognitive radio networks 作者 Xu Gui-sen, Tan Xue-zhi 期刊名称 中南大学学报 期卷 18(5) 简单介绍 a novel distributed cognitive radio multichannel medium access protocol without common control channel was proposed. The protocol divided a transmission interval into two parts for exchanging control information and data respectively. In addition to evaluating system saturation throughput of the proposed protocol, a tridimensional multichannel Markov chain model to describe the sate of the cognitive users (CUs) in dynamic spectrum access is presented. The proposed analysis applies to the packet transmission schemes employed by the basic, RTS/CTS access mechanism adopted in the normal IEEE 802.11. Analyzing the advantage of the two methods, a hybrid access mechanism is proposed to improve the system throughput. Simulation results showed that the experiment results were close to the value computed by the model (less than 5%), and the proposed protocol significantly improved performance of the system throughput by borrowing the licensed spectrum. By analyzing the dependence of throughput on system parameters, hybrid mechanism dynamically selecting access mechanism can maintain high throughput. 论文标题 A New Game Algorithm for Power Control in Cognitive Radio Networks 作者 Feng Li, Xuezhi Tan, Li Wang 期刊名称 2011 IEEE Transactions on Vehicular Technology 期卷 60(9) 简单介绍 Based on the analysis of the feature of cognitive radio (CR) networks, we build a relevant interference model. Cognitive users should particularly consider the problem of interference with licensed users and satisfy the signal-to-interference-plus-noise ratio (SINR) requirement at the same time. We propose a new iterative algorithm using the game theory in this paper. We consider not only the SINR requirement as other game algorithms but also the in？uence of power threshold. The variable power limit is the characteristic of CR. We prove the convergence of the algorithm and the existence of Nash equilibrium. According to different power thresholds, we give an approach for solving the problem of coexistence between licensed user and cognitive user in a cognitive system. The algorithm has the advantage that it can be distributively implemented, and the method converges relatively fast. Numerical results are presented to show that the proposed approach has better antinoise effect and capacity. 论文标题 Optimization for Weighed Cooperative Spectrum Sensing in Cognitive Radio Network 作者 Xin Liu, Xue-zhi Tan 期刊名称 The Applied Computational Electromagnetics Society Journal 期卷 26(10) 简单介绍 In this paper, optimal weighed cooperative spectrum sensing strategies in cognitive radio network are investigated. A weighed cooperative detection based on data fusion is considered. Cognitive radios sense the channels with energy detection independently and send the results to a fusion centre, in which the observed data is fused by the specific weighing. The optimal problems are formulated, which minimize interference and maximize throughput respectively while keeping the probabilities of false alarm and detection within the allowable limit. In particular, the cooperative detections in single channel and multi-channel are both investigated. The approximate optimal weighed factors are obtained by Cauchy-inequality. Based on the weighing, we transform the non-convex optimal problem of multi-channel detection with mixed parameters and non-convex constraint into a convex problem with single parameter and linear constraint, which can be easily solved. Simulations show that the proposed algorithms can achieve lower interference and higher throughput respectively, and the detected performance of each sub-channel can also be guaranteed. Results show that there is a conflict between improving throughput and decreasing interference, and the proposed algorithms can make better use of spectrum by balancing the conflict. 论文标题 基于中继转播的认知无线电协作检测算法 作者 刘鑫, 贾敏, 谭学治 期刊名称 四川大学学报(工程科学版) 期卷 43(增刊1) 简单介绍 针对低信噪比用户的不准确检测会降低认知无线电协作检测的性能,提出了低信噪比认知用户按权重融合中继用户转播的检测信息的"或准则"协作检测算法。算法中高信噪比用户作为中继向所有信噪比比它低的用户转播它的检测信息,各用户通过选择最佳的权重对接收到的检测信息(包括本地检测信息)进行本地融合判决以获取较大的检测概率,融合中心采用"或准则"融合各用户的检测结果并对授权用户做出最后判决。仿真表明,本文算法较传统的协作检测算法检测概率要高,并且当平均信噪比增加时,本文算法的检测概率会有较大的提高。 论文标题 噪声不确定下认知无线电能量检测性能的分析 作者 刘鑫, 谭学治, 徐贵森 期刊名称 四川大学学报 期卷 43:(6) 简单介绍 本文研究了噪声不确定性对认知无线电能量检测产生的影响， 分析了能量检测在噪声墙下的稳定性，得出稳定概率和最小采样点数；提出检测中断概率反映噪声不确定下能量检测的性能，分别得出单用户检测和协作检测的中断概率，以及能量检测所需的检测时间；分析了能量检测的检测概率，得出噪声不确定下检测概率的分布函数，并通过分布函数得到一定中断概率下的最大目标检测概率。仿真表明：增加采样点数能够提高能量检测的稳定性；噪声不确定度提高或者标称信噪比降低会增加能量检测的中断概率，降低检测性能，并且采用协作检测可以降低中断概率。 论文标题 Research on cooperative detection and multiple access for cognitive radio system 作者 Anna Auguste Anghuwo, Xin Liu, Xue-zhi Tan 期刊名称 Journal of Harbin Institute of Technology (New series) 期卷 18(6) 简单介绍 As cognitive radio (CR) needs to detect spectrum accurately and utilize the idle spectrum efficiently,a new model of CR is proposed.This model adopts energy detection with auto-adapted threshold and produces spectrum mark vector.The basis function is obtained through making IDFT to the inner product of spectrum and phase vectors,and it is variable with the spectrum states.Data are sent through modulation on the basis function,and it can be estimated by correlation in the receiving end.The cooperative detection and multiple access of this model are also researched in this paper,and the performance is finally analyzed.Simulations show the cooperative detection of this model can obtain higher detection probability,and the disaccord of the basis functions between sending and receiving ends can lower its performance. 论文标题 Spectrum Sharing Based on Duopoly Model in Cognitive Radio Networks 作者 Jia Yun, Zhang Zhongzhao, Tan Xuezhi 期刊名称 IMCCC2011 期卷 1 简单介绍 Cognitive radio is an emerging technique for improving the utilization of radio frequency spectrum in wireless communication networks. In this paper, we mainly investigate the spectrum sharing problems in a cognitive radio network. We formulate the spectrum sharing problem as a game between primary services, and use Cournot game to obtain the optimal strategies for primary services. Furthermore, considering the reasonableness and fairness in spectrum sharing process, we propose a function of price depends on the channel quality and the QoS performance. Nash equilibrium is considered as the solution of this game. As static Cournot game may not be realistic, we proposed a dynamic game related to the learning rate. Then, the stability condition of the dynamic game for spectrum sharing is investigated. The optimal strate-gy which maximizes the utility of primary service can be obtained by contacting the size of spectrum demand for secondary users and the size of spectrum offered by primary services. Simulation results verify the feasibility and validity of the proposed algorithm. 论文标题 Double-Threshold Cooperative Detection for Cognitive Radio Based on Weighing 作者 Xin Liu, Xuezhi Tan 期刊名称 ChinaCom 2011 期卷 6 简单介绍 In cognitive radio (CR), single-threshold detection is sensitive to the noise power. In this paper, a cooperative detection algorithm with double-threshold and energy statistic weighing is proposed in order to improve sensing performance of the global detection at the coordinator. Two thresholds which are decided by the restriction probability are adopted to improve the performance of the cooperative detection, and energy combining based on weighing is used to improve the performance of the detection in confusion area. Simulation shows that the proposed scheme outperforms cooperative detection with single-threshold and single detection with single-threshold in detection accuracy. 论文标题 STM protocol: Signaling transmission and spectrum sensor are jointed in cognitive radio networks 作者 Xia Li, Lin Ma, Xue Zhi Tan 期刊名称 ICCSNT2011 期卷 1 简单介绍 Cognitive radio networks(CRNs) is a framework to combine every distributing secondary user together by one protocol approach that makes primary users and secondary users work in order. In traditional CRNs technology, secondary users should sense all frequencies periodically by spectrum sensor while it is communicating. But it presents one problem that secondary users will stop to sense all frequencies if primary users appear on the band, while the communication delay depends on the number of users. In this letter, we propose a new CRNs protocol STM based mesh-type network that senses the spectrum by combing tradeoff among secondary users with traditional spectrum sensor. 论文标题 System Yield Based Spectrum Allocation Algorithm for Cognitive Radio 作者 Qi Zhang, Lin Ma,Xuezhi Tan,Yao Wang 期刊名称 IMCCC2011 期卷 1 简单介绍 Abstract—To solve the problem of low system yield of existing spectrum allocation algorithm in cognitive radio, an advanced algorithm based on system yield and maximal independent set (MIS) is proposed. The advanced algorithm is based on coloring model of spectrum allocation and the theory of MIS. The key part of this algorithm is to calculate priority of channels using system parameters such as amount of available channels and system yield. Spectrum source in every MIS is allocated according to priority of channels. The results of simulation prove the feasibility of advanced algorithm and shows that this method efficiently promotes total system yield. 论文标题 Network Coding for Cognitive Radio Systems 作者 Wei Mu, Lin Ma, Xue Zhi Tan, Lei Li, Li Liu 期刊名称 ICCSNT2011 期卷 1 简单介绍 We consider a cognitive radio network wheresecondary users (SUs) employ network coding for datatransmissions. SU transmission time is reduced due to networkcoding. And it increases spectrum availability to SUs. Our resultsshow that compared to the existing approaches based onretransmission, SUs can achieve higher stable throughput, andthe probability that SU has confliction with the primary user (PU)due to sudden appearance of a PU is smaller. 论文标题 Spectrum Allocation Algorithm Based on Game Theory 作者 Yupeng Xie, Xuezhi Tan, YuTao Liu, Lin Ma, Haiyan Wu 期刊名称 IMCCC2011 期卷 1 简单介绍 Process of spectrum allocation is equivalent of rental market in cognitive radio, in order to rent free spectrum of authorized users to cognitive users. the lessors of Spectrum( between authorized users )use the methods of competition between authorized users, Lessees of Spectrum( between cognitive users ) also used the methods of game, the spectrum allocation between authorized user and cognitive users also have methods of game, which can be analyzed by game theory. Game theory can analyze lots of policy choice, but spectrum allocation in cognitive radio network is related to the problem of allocation choice, To make performance of the whole system optimal, spectrum allocation considers not only strategies of other users have an effect on their own, but also their own strategies cause interference to other users, to solve spectrum allocation in cognitive radio networks, game theory is in an effective way. 论文标题 Resource allocation for MIMO-OFDM video transmission systems based on joint source-channel coding 作者 Zhang Chengwen,Liu Xin,Tan xuezhi 期刊名称 CHINACOM 2011 简单介绍 To improve the performance of MIMO-OFDM video transmission systems on the limitation of wireless bandwidth and transmitting power,we propose an adaptive joint resource allocation algorithm with unequal error protection (UEP) based on joint source-channel coding (JSCC) according to H.264 video compression standard and RCPT channel coding.According to different thresholds of the average SNR of subchannels,the algorithm dynamically allocates the source coding parameters of original video data and the channel coding parameters of RCPT,which realizes UEP for the compressed video data of different importance.Through the bit and power allocation based on MQAM modulation and the suhspace allocation based on beamforming technology for different subcarriers,an adaptive joint resource allocation making full use of space-frequency domain resources have been realized.The simulation results indicate that the algorithm improves the adaptability of video transmission systems in different wireless environments and the quality of video retrieval. 论文标题 A Data-aided EVM Estimator for SNR Utilizing Zadoff-Chu Sequence as Preamble 作者 Xiuhua Li, Yonggang Chi, Xuezhi Tan, Yangyang Zhao 期刊名称 IWIEE 2012 期卷 29 简单介绍 A novel data-aided error vector magnitude (EVM) estimator for signal-to-noise ratio (SNR) is derived. Previous SNR estimators are mainly based on the data symbols or the preamble symbols. However, most existing EVM estimators need the factually received symbols modulated and even coded again to recover the symbols in the receiver. To improve it, a good new estimator that utilizes Zadoff-Chu sequence as the preamble is recommended and adopted in this paper. Its performance is examined and compared with Maximum-Likelihood (ML) estimator by the measures of the normalized bias and the normalized mean square error. Numerical results are presented to show the visible advantages obtained by using this estimator. 论文标题 Improved subcarrier allocation in cooperative OFDMA system 作者 Wang Jingning,Wu Xuanli,Tan Xuezhi 期刊名称 CHINACOM 2011 简单介绍 Focusing on the low throughput of fair subcarrier allocation in cooperative OFDMA system, an improved algorithm with single subcarrier capacity threshold and cooperative power factor is proposed. In this algorithm, the users with bad channel can not occupy too many subcarrier, and the power for cooperating with other users of users with good channel is limited. Simulation results show that this algorithm can increase the total channel capacity with less loss of fairness. 论文标题 Time overhead and fairness in spectrum allocation for cognitive radio 作者 Liu Yutao,Jiang Mengxiong,Tan Xuezi 期刊名称 CHINACOM 2011 论文标题 Optimization Algorithm for Cooperative Detection in Cognitive Radio 作者 Xin Liu, Xuezhi Tan, Anna Auguste Anghuwo 期刊名称 WCNC 论文标题 Spectrum Allocation Algorithm Based on Graph Theory Algorithm for Cognitive Radios 作者 Yupeng Xie, Xuezhi Tan, Yutao Liu, Lin Ma, Haiyan Wu 期刊名称 ICISCI 期卷 157-158:10 论文标题 The effects of different frame structures for channel estimation and equalization in SC-FDE communication system 作者 Feng Li, Xuezhi Tan 期刊名称 Journal of Computational Information System 期卷 8(7) 2867- 论文标题 Power-weight Allocation Algorithm for OFDM-based Cognitive Radio System 作者 Xiaolong Yang, Lin Ma, Xuezhi Tan 期刊名称 ISEEIP 期卷 2012:932-9 论文标题 An improved algorithm of multipath parameter estimation 作者 Yang Yu, Xuezhi Tan, Yonggang Chi 期刊名称 Proceeding - The International Conference on Consumer Electronics, Communications and Nerworks, CECNet 期卷 2012: 3103 论文标题 A novel adaptive rate control algorithm for SC-FDE system 作者 Yang Yu, Xuezhi Tan, Yonggang Chi 期刊名称 Proceedings - The 11th International Conference on Signal Processing, ICSP 期卷 2012: 1443 论著成果 •编写了 "集群移动通信"、"集群移动通信系统"等论著；编写了"移动通信"教材一册；发表论文100多篇。已完成项目中获国家科技进步三等奖2项，省部级科技一等奖3项，二等奖7项，三等奖7项，国家级新产品证书１项。 •1 Tan Xuezhi, Wu Shaochuan & Jia Shilou. A Distributed Adaptive Multi-hop Certificate Authority Scheme for Mobile Ad Hoc Networks. Journal of Systems Engineering and Electronics 2005,(6):265~272 •2 Tan Xuezhi Sumin Zhang naitong. Simulation Analysis of TETRA Digital Trunking System , Journal of Systems Engineering and Electronics 2001 •3 Tan Xuezhi ,Liu Quanfeng,Zhang Naitong. A Discussion of the Construction of Police 350MHz Trunking System. CJMW’2004. 2004, (8):383~391 •4 Tan Xuezhi ,Weihua Gao,Zhang Naitong. The Capacitance Study and Analysis of Trunking System.. CJMW’2004. 2004, (8): 575~578 •5 谭学治，李鹏，贾世楼.集群通信系统在CDMA技术中的实现探讨. 电子器件2005,(6):.438~441 •6 谭学治，吴少川，贾世楼. 移动Ad Hoc网络分布式多跳认证授方案. 电子器件2005,(9):.672~677 •7 谭学治,王蕾, 苏闵.. TETRA系统中语音编码算法的实现. 无线电工程. 2003, (10): 64-9~64-11 •8 谭学治，马琳， 张海军. 城市应急联动系统中无线调度平台的选择. 通信技术. 2004, (10):51~53