Cognitive Code-Division Channelization

被引：15

作者：

Gao, Kanke ^{[1
]}

Batalama, Stella N. ^{[1
]}

Pados, Dimitris A. ^{[1
]}

Matyjas, John D. ^{[2
]}

机构：

[1] SUNY Buffalo, Dept Elect Engn, Buffalo, NY 14260 USA

[2] USAF, Res Lab, RIGF, Rome, NY 13441 USA

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2011年 / 10卷 / 04期

关键词：

Code-channel allocation; code-division multiple-access; cognitive radio; power allocation; semidefinite programming; signal-to-interference-plus-noise ratio; DYNAMIC SPECTRUM ACCESS; KARYSTINOS-PADOS BOUNDS; BINARY SIGNATURE SETS; RADIO NETWORKS; ALLOCATION;

D O I：

10.1109/TWC.2011.011811.091542

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We consider the problem of simultaneous power and code-channel allocation for a secondary transmitter/receiver pair coexisting with a primary code-division multiple-access (CDMA) system. Our objective is to find the optimum transmitting power and code sequence of the secondary channel that maximize the signal-to-interference-plus-noise ratio (SINR) at the output of the maximum SINR linear receiver, while at the same time the SINR of all primary channels at the output of their max-SINR receiver is maintained above a certain threshold. This is a non-convex NP-hard optimization problem. We propose a novel feasible suboptimum solution using semidefinite programming. Simulation studies illustrate the theoretical developments.

引用

页码：1090 / 1097

页数：8

共 23 条

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