Performance of Single Carrier Transmission with Cooperative Diversity over Fast Fading Channels
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SCOPUS
- Title
- Performance of Single Carrier Transmission with Cooperative Diversity over Fast Fading Channels
- Authors
- Seol, DY; Kwon, UK; Im, GH
- Date Issued
- 2009-09
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Abstract
- Space-time block coded (STBC) single carrier (SC) transmission was extended in a distributed fashion for practical implementation of user cooperation. However, STBC was designed under the assumption that the channel is static over the duration of a space-time codeword. Thus, the distributed STBC SC system suffers from the time selectivity of wireless fading channels. To achieve a reliable performance over fast fading channels, we propose a distributed space-frequency block coded (D-SFBC) SC transmission. This paper analytically compares the performance of these two distributed SC transmissions over fast fading environment. For evaluation of mean square error (MSE) over fast fading channels, we present a channel model that captures the time-varying nature of wireless channels. It gives an insight into the characteristics of inter-carrier interference and simplifies the evaluation of MSE. Using this model, it is proven that the D-SFBC SC transmission outperforms the D-STBC SC transmission when there exists a severe Doppler spread. Simulation results are also provided to validate our analysis and to compare two distributed single carrier transmission schemes.
- Keywords
- Single carrier frequency-domain equalization (SC-FDE); space-frequency block code (SFBC); space-time block code (STBC); inter-carrier interference (ICI); relay; FREQUENCY-DOMAIN EQUALIZATION; WIRELESS CHANNELS; OFDM; SYSTEMS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/27816
- DOI
- 10.1109/TCOMM.2009.09.080015
- ISSN
- 0090-6778
- Article Type
- Article
- Citation
- IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 57, no. 9, page. 2799 - 2807, 2009-09
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