吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (04): 1139-1143.

• paper • Previous Articles     Next Articles

Improved cooperative scheme based on spacetime code and performance analysis

ZHANG Nan1, GE Jian-hua1, |XIONG Xiong1, He Hong-wen2   

  1. 1.State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an 710071, China;2.Military Agency of the Second Artillery in Xiaogan,Xiaogan 432100,China
  • Received:2008-09-24 Online:2010-07-01 Published:2010-07-01

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Abstract:

To improve the spectral efficiency of current AmplifyandForward protocol based on the Distributed SpaceTime Code (AFDSTC), we proposed an improved Selection AmplifyandForward protocol based on the Distributed SpaceTime Code (SAFDSTC). This improved protocol shortens the cooperative period from four time slots to three slots, that saves 33.3% of the symbol transmission bandwidth. Theoretical analysis and simulation results show that, at the same spectral efficiency, the proposed SAFDSTC protocol significantly outperforms the AFDSTC protocol in terms of the consumed power, outage probability and bit error rate.

Key words: communication, cooperative diversity, outage probability, selection amplifyandforward (SAF), distributed spacetime code

CLC Number: 

  • TN929.5
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