| 引用本文: | 蒋樟琳,张中兆,沙学军,孙丽楠.减少上行CQI反馈的OFDIVIA系统资源分配[J].哈尔滨工业大学学报,2012,44(5):36.DOI:10.11918/j.issn.0367-6234.2012.05.007 |
| JIANG Wei-lin,ZHANG Zhong-zhao,SHA Xue-jun,SUN Li-nan.Resource allocation with reducing uplink CQI feedback in OFDMA[J].Journal of Harbin Institute of Technology,2012,44(5):36.DOI:10.11918/j.issn.0367-6234.2012.05.007 |
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| 摘要: |
| 针对目前OFDMA系统上行信道信息的反馈量大和公平性欠佳的问题，提出了减少上行反馈的资源
分配算法，该算法在高信噪比下，小区中心的用户不需要反馈CQI，而在低信噪比的小区边缘，当用户量小
时，采用1B反馈，当用户量大时，采用基于门限的Best-M反馈方案．同时，根据Best-M反馈方案，提出了对
第1个用户优先选择方案．本文算法在保证资源分配必要的反馈信息的前提下，对复杂度和性能之间进了折
中，同时满足了用户之间资源分配的公平性 |
| 关键词: OFDMA 信道状态信息 反馈 注水 |
| DOI：10.11918/j.issn.0367-6234.2012.05.007 |
| 分类号:TN929.5 |
| 基金项目:围家重点基础研究发展计划资助项目( 2007CB310601) |
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| Resource allocation with reducing uplink CQI feedback in OFDMA |
|
JIANG Wei-lin,ZHANG Zhong-zhao,SHA Xue-jun,SUN Li-nan
|
| Abstract: |
| According to the features that uplink CQI feedback is high and not fair enough in OFDMA system,
the reducing feedback resource allocation algorithm is proposed. Users in the cell center with higher SNR do
not need feedback CQI, and users in the cell edge with lower SNR adopt l B feedback when the load is low
while the Best-M is adopted and the load is heavy. Meanwhile, according to the Best-M project, the first user
preference is proposed. On the premise of ensuring the necessary feedback information of resource allocation,
the proposed algorithm trades off between complexity and performance, and meets the users' fairness |
| Key words: OFDMA channel quality information feedback waterfilling |
