Cross-Layer Interference Mitigation for Cognitive Radio MIMO Systems
Cross-Layer Interference Mitigation for Cognitive Radio MIMO Systems
复制标题
认知无线电 MIMO 系统的跨层干扰缓解
DOI:
10.1109/icc.2011.5962698
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Chen Z
中科院分区:
文献类型:
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作者:
Chen Z
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.
DOI:
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发表时间:
2007
期刊:
IEEE Military Communications Conference
影响因子:
--
作者:
E. Zeydan;D. Kivanc;U. Tureli
通讯作者:
U. Tureli
DOI:
--
发表时间:
2008
期刊:
Annual Conference on Information Sciences and Systems
影响因子:
--
作者:
E. Zeydan;D. Kivanc;U. Tureli
通讯作者:
U. Tureli