Cross-Layer Interference Mitigation for Cognitive Radio MIMO Systems

被引：0

作者：

Chen, Zengmao ^{[1
]}

Wang, Cheng-Xiang ^{[1
]}

Hong, Xuemin ^{[1
]}

Thompson, John ^{[2
]}

Vorobyov, Sergiy A. ^{[3
]}

Yuan, Dongfeng ^{[4
]}

机构：

[1] Heriot Watt Univ, Joint Res Inst Signal & Image Proc, Edinburgh EH14 4AS, Midlothian, Scotland

[2] Univ Edinburgh, Joint Res Inst Signal & Image Proc, Edinburgh EH9 3JL, Midlothian, Scotland

[3] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada

[4] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China

来源：

2011 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2011年

基金：

加拿大自然科学与工程研究理事会;

关键词：

cognitive radio; cross-layer design; interference mitigation; CHANNEL; NETWORKS; ANTENNAS;

D O I：

暂无

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：

In this paper, we investigate the interference mitigation from a cross-layer perspective for a cognitive radio (CR) multiple-input multiple-output (MIMO) network coexisting with a primary time-division-duplexing (TDD) system. The channel allocation in the media access control (MAC) layer and a subspace-based precoding scheme in the physical layer of the CR network are jointly considered to minimise the interference to the primary user and maximise the CR throughput. Two distributed cross-layer algorithms, namely, joint iterative channel allocation and precoding (JICAP) and non-iterative channel allocation and precoding (NICAP), are proposed for the cases with and without channel information among CR nodes, respectively. Moreover, a channel estimation scheme is also proposed to enable the NICAP. The effectiveness of the proposed algorithms over non-cross-layer counterpart is demonstrated via simulations.

引用

页数：6

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