Title :
A Study of Cooperative Diversity Scheme in Ultra-Wideband System
Author :
Yang, Ting-Ting ; Sun, Zhong-Hua
Author_Institution :
Coll. of Inf. Eng., Dalian Maritime Univ., Dalian
Abstract :
A novel system based on cooperative distributed space-time block code (DSTBC)and multi-band orthogonal frequency division multiple (MB-OFDM) is proposed which works well on multiple single-antenna users wireless networks in ultra-wideband system. In this system, using MB-OFDM technology modulate data to subcarriers, can resist the influence of frequency selective fading channel effectively. Over cooperative diversity scheme based on DSTBC-MB-OFDM, a theoretical bit error rate (BER) performance expression of the system has been derived. Also its closed-form expression is derived by means of the moment generating function (MGF). Monte Carlo simulation results are given to demonstrate the BER performance of DSTBC-MB-OFDM outgoes non-cooperative MB-OFDM with distinctive gains.
Keywords :
Monte Carlo methods; antenna arrays; block codes; diversity reception; error statistics; fading channels; space-time codes; ultra wideband communication; BER; Monte Carlo simulation; bit error rate; cooperative distributed space-time block code; cooperative diversity scheme; moment generating function; multiband orthogonal frequency division multiplexing; ultrawideband system; Bit error rate; Block codes; Closed-form solution; Fading; Frequency conversion; Performance gain; Resists; Space technology; Ultra wideband technology; Wireless networks;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.270
