Compression Schemes for the Feedback Channel in Multiband-OFDM UWB Systems

被引：1
|
作者：
Chakraborty, Kaushik [1 ]
Das, Soumya [1 ]
Dural, Ozguer [1 ]
Rajamani, Krishnan [1 ]
Soliman, Samir S. [1 ]
机构：
[1] Qualcomm Inc, San Diego, CA 92121 USA
来源：
2009 IEEE INTERNATIONAL CONFERENCE ON ULTRA-WIDEBAND (ICUWB 2009) | 2009年
关键词：
feedback channel; channel state information; compression schemes; spectral correlation; temporal correlation; PERFORMANCE ANALYSIS;
D O I：
10.1109/ICUWB.2009.5288745
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In time-varying channels, channel state information (CSI) is often provided via a feedback channel to facilitate dynamic allocation of resources like transmit power and data rates. In OFDM-based ultra wideband (UWB) channels, the signaling overhead for this CSI feedback can be extremely large. In this paper, we propose several compression schemes for the feedback channel that exploit the temporal and spatial correlation properties of the multiband-OFDM UWB channel, viz., fixed and variable spectral binning techniques, hierarchical binary tree-based spectral compression schemes, and Markov state-based differential temporal compression schemes.
引用
收藏
页码：443 / 448
页数：6
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