The Effect Of Channel Resolution On Compressed Sensing Based Ultra-wideband Channel Estimation [kanal Çözünürlü?ünün Sıkıştırılmış Algılama Tabanlı Ultra Geni?ş Bantlı Kanal Kesti?ri?mi?ne Etki?si?]

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Date

2011

Authors

Başaran, Mehmet
Erküçük, Serhat
Cirpan, Hakan Ali

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Open Access Color

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Ultra short pulses are transmitted in Ultra-Wideband (UWB) communications. As a result of this pulses at the receiver can be resolved individually due to the sparse structure of the channel. Due to these properties the UWB channel can be estimated by using a compressed sensing based channel estimation method. The performance of channel estimation depends on the sparsity of the channel. In this work the effect of channel resolution which directly affects the sparsity is examined. It is shown that the channel becomes more sparse and the channel estimation performance is improved with increased channel resolution. Also the system performances of practically used selective-Rake receivers with estimated channels are found to be close to the perfect channel estimation case. © 2011 IEEE.

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1

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367

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370