Sum capacity, rate distribution and scenarios for multiuser diversity in MIMO-OFDMA
Authors: 
Gerhard Bauch, Christian Guthy, Josef A. Nossek, Pedro Tejera, Wolfgang UtschickAuthors Info & Claims
Gerhard Bauch, Christian Guthy, Josef A. Nossek, Pedro Tejera, Wolfgang UtschickAuthors Info & ClaimsPages 7 - 12
Abstract
We consider an innovative downlink multiuser MIMO scheme. Several users compete for the available resources in time, frequency and space. The proposed scheme exploits multiuser diversity and uses interference cancellation at the transmitter. We evaluate it for indoor, hot spot and multihop scenarios. Significant gains in terms of sum capacity can be achieved even under line of sight conditions. The theoretical limit can be approximately achieved in most scenarios. A nice feature of the proposed scheme is that it inherently provides some fairness regarding rate distribution among users even though fairness is not explicitly taken into account by the scheduler.
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Published In
August 2007
716 pages
ISBN:9781595936950
DOI:10.1145/1280940
- General Chairs:
- Mohsen Guizani,
- Hsiao-Hwa Chen,
- Program Chair:
- Xi Zhang
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Published: 12 August 2007
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