Effect of channel-estimation error on BER performance in cooperative transmission

Seungyoup Han, Seongwoo Ahn, Eunsung Oh, Daesik Hong

Research output: Contribution to journalArticle

105 Citations (Scopus)

Abstract

In this paper, a framework for evaluating the bit-error-rate (BER) performance of amplify-and-forward (AF) relay-assisted cooperative transmission is provided in the presence of imperfect channel estimation. First, the AF relaying is classified into two cases-a variable gain and a fixed gain. For each case, the closed-form average BER is derived by using the moment-generating function (MGF) of the effective output SNR, which quantifies the SNR penalty due to the noisy channel estimate. Moreover, the asymptotic BER bound is also provided at a high SNR regime for the insight of our approach. In particular, the effect of the feedforward delay on informing the source-relay channel estimate as to the destination is presented in the variable-gain relay. Numerical investigation shows that the analytic result makes an exact match with the simulation, and the comparative superiority between the fixed- and variable-gain relay is discussed.

Original languageEnglish
Pages (from-to)2083-2088
Number of pages6
JournalIEEE Transactions on Vehicular Technology
Volume58
Issue number4
DOIs
Publication statusPublished - 2009 Jun 3

Fingerprint

Cooperative Transmission
Channel Estimation Error
Channel estimation
Bit error rate
Error Rate
Relay
Amplify-and-forward
Relay Channel
Moment generating function
Channel Estimation
Feedforward
Numerical Investigation
Imperfect
Estimate
Penalty
Closed-form
Quantify
Output
Simulation

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Han, Seungyoup ; Ahn, Seongwoo ; Oh, Eunsung ; Hong, Daesik. / Effect of channel-estimation error on BER performance in cooperative transmission. In: IEEE Transactions on Vehicular Technology. 2009 ; Vol. 58, No. 4. pp. 2083-2088.
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Effect of channel-estimation error on BER performance in cooperative transmission. / Han, Seungyoup; Ahn, Seongwoo; Oh, Eunsung; Hong, Daesik.

In: IEEE Transactions on Vehicular Technology, Vol. 58, No. 4, 03.06.2009, p. 2083-2088.

Research output: Contribution to journalArticle

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