An adaptive retransmission scheme of SIMO FM-DCSK UWB system

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 (Td) 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 (Td) 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.

[1]  Michael Peter Kennedy,et al.  FM-DCSK: a novel method for chaotic communications , 1998, ISCAS '98. Proceedings of the 1998 IEEE International Symposium on Circuits and Systems (Cat. No.98CH36187).

[2]  Lin Wang,et al.  A novel MIMO relay FM-DCSK UWB system for low-rate and low-power WPAN applications , 2011, 2011 11th International Symposium on Communications & Information Technologies (ISCIT).

[3]  Guanrong Chen,et al.  Essence and Advantages of FM-DCSK Versus Conventional Spread-Spectrum Communication Methods , 2005 .

[4]  Guanrong Chen,et al.  Performance of SIMO FM-DCSK UWB System Based on Chaotic Pulse Cluster Signals , 2011, IEEE Transactions on Circuits and Systems I: Regular Papers.

[5]  Géza Kolumbán,et al.  NONCOHERENT UWB IMPULSE RADIO AND FM-DCSK : WHAT MAKES THEM DIFFERENT , 2006 .

[6]  Michael Peter Kennedy,et al.  ELABORATION OF SYSTEM SPECIFICATION FOR A WLAN FM-DCSK TELECOMMUNICATIONS SYSTEM , 2000 .

[7]  Ramjee Prasad,et al.  Medium Access Techniques in Ultra-wideband Ad Hoc Networks , 2003 .

[8]  Lin Wang,et al.  An SIMO FM-DCSK UWB scheme for low-rate WPAN applications , 2009, 2009 9th International Symposium on Communications and Information Technology.

[9]  Shaoyuan Chen,et al.  Performance of FM-DCSK UWB with timing error , 2009, 2009 9th International Symposium on Communications and Information Technology.

[10]  G. Kolumban.  UWB technology: chaotic communications versus noncoherent impulse radio , 2005, Proceedings of the 2005 European Conference on Circuit Theory and Design, 2005..

[11]  Aura Ganz,et al.  A radio resource control method in UWB MAC protocol design , 2003, IEEE Military Communications Conference, 2003. MILCOM 2003..

[12]  A. Molisch,et al.  IEEE 802.15.4a channel model-final report , 2004 .

[13]  Michael Peter Kennedy,et al.  Performance evaluation of FM-DCSK modulation in multipath environments , 2000 .

[14]  Chia-Chin Chong,et al.  Non-coherent UWB Radio for Low-rate WPAN Applications: A Chaotic Approach , 2007, Int. J. Wirel. Inf. Networks.