Cooperative Spectrum Sharing Based on Two-Path Successive Relaying
Publication in refereed journal

香港中文大學研究人員

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摘要A spectrum sharing scheme is proposed for overlaid wireless networks based on the decode-and-forward two-path successive relaying technique. In this scheme, two secondary transmitters are used to transmit secondary information alternately to their respective receivers while relaying the primary signal at the same time. The transmission of the primary system is continuous, and the secondary system can opportunistically help the primary transmission in exchange for the spectrum sharing. Superposition coding is used at the secondary transmitters, where the primary signal and secondary signal are linearly combined. Successive interference decoding and cancelation is performed by secondary users to extract their desired signals. For the primary system, joint decoding is performed by treating the secondary signal as noise at the receiver side. The optimal power allocation is determined to maximize the success probability of the secondary system without violating the outage performance of the primary system. Numerical and simulation results show that the proposed scheme can conservatively protect the primary performance while realizing the secondary transmission requirement.
著者Zhai C, Zhang W, Ching PC
期刊名稱IEEE Transactions on Communications
出版年份2013
月份6
日期1
卷號61
期次6
出版社Institute of Electrical and Electronics Engineers (IEEE)
頁次2260 - 2270
國際標準期刊號0090-6778
電子國際標準期刊號1558-0857
語言英式英語
關鍵詞Cognitive radio; cooperative communication; spectrum sharing; two-path successive relaying
Web of Science 學科類別Engineering; Engineering, Electrical & Electronic; ENGINEERING, ELECTRICAL & ELECTRONIC; Telecommunications; TELECOMMUNICATIONS

上次更新時間 2020-17-10 於 01:33