POWER CONTROL FOR MULTIPLE SPECTRUM-SHARING NETWORKS UNDER RANDOM GEOMETRIC TOPOLOGIES
Refereed conference paper presented and published in conference proceedings

香港中文大學研究人員

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摘要This paper develops a power control strategy for multiple spectrum-sharing networks of single antenna nodes in a spectrum underlay scenario. A distinguishing feature of the proposed strategy is that it requires only knowledge of the spatial distribution of the nodes, rather than instantaneous channel state information. The strategy seeks to maximize a weighted sum of the throughput of each network while guaranteeing specified successful transmission probabilities. In its native form, this joint power allocation problem is difficult to solve. However, we show that the problem can be transformed into a convex optimization formulation that can be efficiently solved using general purpose tools. Furthermore, we analyze the optimality conditions and obtain a quasi-closed form solution reminiscent of waterfilling. Numerical results demonstrate that spectrum sharing employing the proposed optimal power yields a substantial throughput gain over allocating the spectrum to a single network.
著者Cai R, Zhang JK, Davidson TN, Wong KM, Ching PC
會議名稱IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
會議開始日26.05.2013
會議完結日31.05.2013
會議地點Vancouver
會議國家/地區加拿大
詳細描述organized by IEEE Signal Processing Society ,
出版年份2013
月份1
日期1
出版社IEEE
頁次4809 - 4813
電子國際標準書號978-1-4799-0356-6
國際標準期刊號1520-6149
語言英式英語
關鍵詞convex optimization; power control; Spectrum sharing; stochastic geometry; wireless networks
Web of Science 學科類別Acoustics; Engineering; Engineering, Electrical & Electronic

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