Sangeetha Manoharan
ABSTRACT
his paper, we consider chaotic digital communications in Single Input Single Output (SISO) and Multiple-Input-Multiple-Output (MIMO) wireless multipath Nakagami channels. We focus on a single user system that employs M-ary Differential Chaos Shift Keying (M-DCSK). We consider a transceiver scheme, which requires no channel state information at either the transmitter or the receiver. SISO system employs a distinct chaotic sequence at the transmit antenna to spread the data symbols and transmit omnidirectionally, whereas MIMO system employs a distinct chaotic sequence at each transmit antenna to spread the same data symbols and transmit omnidirectionally. In MIMO systems, at the receiver, differential detection statistics is performed for each receive antenna, and these statistics are then combined with equal gain combining and maximum ratio combining for symbol detection. System performance is calculated in terms of the Bit Error Rate for various space diversity levels and average SNRs. Performance comparison for SISO and MIMO systems is performed. Also, the performance of the system is evaluated for various chaotic sequence lengths.
- Anjam Riaz and Maaruf Ali, "Chaotic Communications, their Applications and Advantages over Traditional Methods of Communication" CSNDSP'08, pp 21--24, July 2008.Google Scholar
- G.M.Bhat, Javid Ahmad and Shabir Ahamd. "On the Realization and Design of Chaotic Spread Sectrum Modulation Technique for Secure Data Transmission," Multimedia, Signal Processing and Communication technologies, IMPACT'09, pp.241--244, March 2009.Google Scholar
- Ghobad Heidari-Bateni, "A Chaotic Direct-Sequence Spread Spectrum Communication System," IEEE Transactions on Communications, vol.42, pp.1524--1527, April 1994.Google ScholarCross Ref
- C.C.Chong and S. K. Yong, "UWB direct chaotic communication technology for low-rate WPAN applications," IEEE Transactions on Vehiclular Technology, vol.57, no.5, pp.15271536, May.2008Google Scholar
- T.L. Carrolla, "Adaptive chaotic maps for identification of complex targets," IET Radar Soanr Navigation., vol.2, no.8, pp-256--262, Aug.2008Google ScholarCross Ref
- A. Argyris, D. Syvridis, L. Larger, V. Annovazzi-lodi, P. Colet, I. Fischer, J. Garcia-Ojalvo, C. R. Mirasso, L. Pesquera, and K. A. Shore, "Chaos-based communciations at high bit rates using commercial fiber-optic links," Nature Internatinal weekly journal of science., vol.438, no.11, pp. 343--346, Nov. 2005Google ScholarCross Ref
- G. Kolumban, M. P. Kennedy, Z. Jako and G. Kis, "Chaotic Communcations with correaltor receivers: Theory and Performance limits," Proceedings of the IEEE, vol. 90, no.5, pp. 711--731, May 2002.Google ScholarCross Ref
- A. Abel and W. Schwarz, "Chaos communications-Principles, schemes and system analysis," Proceedings of the IEEE, vol. 90, no.5, pp. 691--710, May 2002.Google ScholarCross Ref
- G. Kolumban, M. P Kennedy, and G. Kis, "FM DCSK-A novel method for Chaotic Communcations," Proceedings of the International Symposium on Cicuits and Systems, pp. 477--480, Monterey, USA, May/June 1998.Google Scholar
- L. Wang, C. X. Zhang, and G. R. Chen, "Performance of an SIMO FM-DCSK communication system," IEEE Transactions on Circuits and Systems II, vol.55, no.5, pp. 457--461, May 2008.Google ScholarCross Ref
- D. Gesbert, M. Shafi, D. Shiu, P. J. Smith, A. Naguib, "From theory to Practice: An overview of MIMO Space-Time Coded Wireless system," IEEE Journal on Selected Areas in Comunication, vol.21, no.3, pp.281--302, April 2003. Google ScholarDigital Library
- Y. S. Lau, K. H. Lin and Z. M. Hussain, "Space-time encoded secure chaos communications with transmit beamforming," Proceedings of the IEEE, pp. 1--5, ISBN: 0.7803-9311-2, Nov. 2005.Google Scholar
- K. Thapaliya, Q. H. Yang, and K. S. Kwak, "Chaotic Communications in MIMO systems," Proceedings of the 3rd International Conference on Embedded Software and Systems, Salzburg, Austria, pp. 708--717, May 2007. Google ScholarDigital Library
- S. Wang and X. Wang, "M-DCSK-based chaotic communications in MIMO multipath Channels with no channel state information," IEEE Transactions on Circuits and Systems II, vol. 57, no. 12, pp. 1001--1005, Dec. 2010. Google ScholarDigital Library
- T. Schimming and W. Schwarz, "Signal modeling using piece-wise linear chaotic generators," Proceedings of European Signal Processing Conference, pp. 1377--1380, Las Vegas, USA, May 1998.Google Scholar
- Performance comparison of M-DCSK schemes in MIMO Nakagami channels with and without diversity combining
Recommendations
M-DCSK-based chaotic communications in MIMO multipath channels with no channel state information
We consider chaotic digital communications in multiple-input-multiple-output (MIMO) wireless multipath fading channels. In particular, we focus on systems that employ M-ary differential chaos shift keying (M-DCSK). We consider two transceiver schemes, ...
Novel diversity combining in OFDM-based MIMO systems
MATH'08: Proceedings of the American Conference on Applied MathematicsIn this paper, we investigate the performance of a novel diversity combining technique, termed root-mean-square diversity combining (RMSGC), for OFDM transmission over flat Rayleigh fading channels in MIMO systems in the presence of co-channel ...
Performance of cooperative diversity using equal gain combining (EGC) over Nakagami-m fading channels
Cooperative diversity is a promising technology for future wireless networks. In this paper, we derive exact closed-form expressions for the average bit error rate (BER) and outage probability (Pout) for differential equal gain combining (EGC) in ...
Comments