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Trade-Off of Multiplexing Streams in MIMO Broadcast Channels
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- Authors
- Seung-Hwan Lee, John Thompson
- Issue Date
- 2010-02
- Citation
- IEEE Communications Letters, v.14, no.2, pp.115-117
- ISSN
- 1089-7798
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- A soft antenna trade-off scheme between different quality of service (QoS) groups in multiple input multiple output (MIMO) broadcast channels (BCs) is proposed. With the proposed scheme, a higher priority group takes precedence in using multiplexing streams for satisfying its QoS requirement. The number of streams allocated to each QoS group is gracefully adapted to the wireless channel conditions and QoS requirements. Numerical results demonstrate that the proposed scheme can improve the probability of QoS-guaranteed transmission while simultaneously maximizing the total throughput. © 2010 IEEE.
- KSP Keywords
- MIMO broadcast channel, Multiple input multiple output(MIMO), Numerical results, QoS Requirements, Trade-off, Wireless Channel, channel condition, quality-of-service(QoS), total throughput