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http://dx.doi.org/10.3745/KIPSTC.2005.12C.6.901

A study on Multi-code Spread Spectrum System and its adaptation using MHCOC  

Kong Hyung-Yun (울산대학교 전기전자정보시스템공학부)
Nam Doo-Hee (울산대학교 전기전자정보시스템공학부)
Abstract
In this paper, we propose a novel MHCOC (Mapped High Capacity Orthogonal Code) SS(Spread Spectrum) technique that reduces high PAPR (Peak power to Average Power Ratio) of HCOC SS system which was proposed to support high data rate transmission, and we compare to the conventional modulation technique such as MQAM SS that can transmit the same number of symbols at the same time. Moreover, we study on adaptation of this system to satisfy QoS (Quality of Service) that services the proper data rate according to the propagation channel quality information. We perform computer simulation to verify the performance of the proposed system and analyze its availability.
Keywords
HCOC Mapping; Spread Spectrum; Adaptive Modulation System;
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  • Reference
1 R. Steele and L. Hanzo, Eds., 'Mobile Radio Communications', 2ed ed. New York: IEEE Press; Wiley, 1999
2 N. Guo and L. B. Milstein, 'On Sequence Sharing For Multi-Code Ds/Cdma Systems', MILCOM'98, October, 1998, Boston, USA, Vol.1, pp.238-242   DOI
3 N. Iwakiri, 'Evaluation of Multilayer High-speed Data Transmission based on Multi-code Technology', ICT'98, June, 1998, Porto Carras, Greece, Vol.1, pp.489-493
4 Hyung-Yun Kong, II-Seung Woo, Kwang-Chun Ho 'Design of New Multi-Code CDMA System Based on SOC Technique', Vol.E84-A No.12 pp.3182-3186, IEICE Transactions on Communication, Dec., 2001
5 L. Hanzo, W. Webb, and T. Keller, 'Single-and Multicarrier Quadrature Amplitude Modulation', pp.67-112, John Wiley & Sons, LTD, 2000
6 F. Xiong, 'Digital Modulation Techniques', pp.411-458, Artech House Publishers. 2000
7 Byoungjo Choi and Lajos Hanzo, 'Optimum Mode-Switching-Assisted Constant-Power Single- and Multicarrier Adaptive Modulation', Vehicular Technology, IEEE Transactions on, Volume: 52 , Issue: 3, May, 2003   DOI   ScienceOn
8 Xiaoxin Qiu; Chawla, K; Communications, IEEE Transactions on Vol.47, Issue 6, June, 1999 Page(s) : 884-895   DOI   ScienceOn