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Performance Analysis of the DM-MPSK in Multipath Fading Channels  

Lee, Myung-Soo (성균관대학교 정보통신공학부)
Song, Chong-Han (성균관대학교 정보통신공학부)
Kim, Jun-Hwan (성균관대학교 정보통신공학부)
Yoon, Seok-Ho (성균관대학교 정보통신공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.35, no.3C, 2010 , pp. 314-319 More about this Journal
Abstract
The chirp spread spectrum (CSS) technique that spreads the data signal over a wider frequency band via chirp signal for transmission has attracted much attention in the field of wireless communications due to capability to resist multipath fading signals. However, there has been little mathematical analysis for the performance of CSS-based communication systems in the multipath fading environments. In this paper, we study the influence of the multipath channel on the direct modulation (DM) scheme with M-ary phase shift keying (MPSK). When a chirp signal is transmitted on the Rayleigh fading channel and affected by additive white Gaussian noise (AWGN), we derive the theoretical performance. From numerical results, it is confirmed that the analytic symbol error rate (SER) agrees closely with the empirical SER.
Keywords
CSS; DM; MPSK; SER; Multipath;
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