An adaptive retransmission scheme of SIMO FM-DCSK UWB system

Author

Tingting Huang ; Lin Wang ; Weikai Xu ; Guofa Cai

Author_Institution

Dept. of Commun. Eng., Xiamen Univ., Xiamen, China

fYear

2013

fDate

4-6 Sept. 2013

Firstpage

128

Lastpage

132

Abstract

In this paper, an adaptive retransmission mechanism of single-input frequency-modulated differential chaos shift keying Ultra-wideband (SIMO FM-DCSK UWB) system with automatic repeat request (ARQ) protocol has been investigated, in which scheme adaptive unit delay (T_d) is used to control transmission. Unlike the previous work based on optimal assignment of number of pulses per symbol or frame duration, the adaptive unit delay (T_d) will not change the data rate or bandwidth, only can change the position of the pulses. Through simulation it is shown that bit error rate (BER) and throughput performances of the proposed scheme are better than normal retransmission mechanism when it is applied to two-user or multi-user systems over indoor channel, it reflects that our proposed scheme can enhance performance of chaotic UWB systems.

Keywords

automatic repeat request; differential phase shift keying; error statistics; frequency modulation; ultra wideband communication; ARQ protocol; BER; SIMO FM-DCSK UWB system; adaptive retransmission mechanism; adaptive retransmission scheme; adaptive unit delay; automatic repeat request protocol; bit error rate; chaotic UWB systems; indoor channel; multiuser systems; optimal assignment; single-input frequency-modulated differential chaos shift keying ultra-wideband system; two-user systems; Adaptive systems; Bit error rate; Chaotic communication; Delays; Receivers; Throughput; adaptation retransmission; ber; throughput; unh delay;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technologies (ISCIT), 2013 13th International Symposium on

Conference_Location

Surat Thani

Print_ISBN

978-1-4673-5578-0

Type

conf

DOI

10.1109/ISCIT.2013.6645836

Filename

6645836