文献类型：期刊文献

英文题名：Fundamental Limits of Full-Duplex Spectrum Sharing Under Peak Interference Power Constraint

作者：Xie, Xianbin Bi, Yan

第一作者：谢晓博

通信作者：Xie, XB[1]

机构：[1]Guizhou Inst Technol, Dept Big Data Engn, Guiyang 550003, Peoples R China;[2]Guizhou Univ, Dept Math & Stat, Guiyang 550025, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Dept Big Data Engn, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：0

外文期刊名：WIRELESS PERSONAL COMMUNICATIONS

收录：;EI(收录号：20214911273280);Scopus(收录号：2-s2.0-85120423877);WOS:【SCI-EXPANDED(收录号:WOS:000725457000003)】；

基金：This work has been supported by the Joint Foundation of Guizhou Province under Grant QianKeHeLHZi[2016]7106 and the Nature Science Foundation of Guizhou Province under Grant QianKeHeJiChu[2017]1070. In addition, the part work of this paper was presented at the International Conference on IEEE 20th International Conference on Communication Technology [34].

语种：英文

外文关键词：Cognitive radio; Spectrum sharing; Full-duplex; Outage probability; Ergodic sum capacity

摘要：Cognitive radio (CR) and full-duplex (FD) have received extensive attention and research due to their high spectrum efficiency, which can effectively solve the problem of low spectrum efficiency in current communication systems. Based on CR and FD techniques, in this paper, a FD spectrum sharing CR networks is considered, in which both secondary users (SU1 and SU2) are each equipped with dual antennas, one antenna is used to transmit signals, and the other antenna is used to receive signals at the same time and frequency. Under peak interference power and peak transmit power constraints, we analysis the ergodic sum capacity and the outage probability based on the FD spectrum sharing CR networks and the conventional spectrum sharing CR networks. Furthermore, under no peak transmit power constrain and perfect self-interference cancellation (SIC), based on the FD spectrum sharing CR networks and the conventional spectrum sharing CR networks, the closed-form expressions of the theoretical performance upper bound of the ergodic sum capacity and the outage probability are derived by two lemmas and four propositions. Accurate mathematical analysis display, under the same bandwidth, the upper bound of ergodic sum capacity for the full-duplex spectrum sharing CR networks is twice as much as the traditional spectrum sharing CR networks, and the FD spectrum sharing CR networks based on SU1, also has better performance upper bound on the outage probability than the traditional spectrum sharing CR networks. Simulations results also validate that, the FD spectrum sharing CR networks obtains better communication performance than the conventional spectrum sharing CR networks, especially when the mean of self-interference channel power gain is small. Finally, we also can see that the simulation performance upper bound is completely consistent with the theoretical analysis performance upper bound, whether in the FD spectrum sharing CR networks or the conventional spectrum sharing CR networks. So also verifies the correctness of the theoretical performance upper bound derivation.