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On the Capacity of CPM MIMO Systems over Band-Limited Channels
School of Science, Jimei University, Xiamen, China
School of Optoelectronics and Communication Engineering, Xiamen University of Technology, Xiamen, China
School of Electronic engineering, Beijing University of Posts and Telecommunications, Beijing, China
- 1 School of Science, Jimei University, Xiamen, China
- 2 School of Optoelectronics and Communication Engineering, Xiamen University of Technology, Xiamen, China
- 3 School of Electronic engineering, Beijing University of Posts and Telecommunications, Beijing, China
International Journal of Communications, Network and System Sciences·Volume 10 (2017)·Pages 69–75·Published 14 August 2017·DOI10.4236/ijcns.2017.108B008
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Abstract
Capacity analysis is a fundamental and important issue for continuous phase modulation (CPM) signals. In the letter, we investigate the capacity formula of CPM MIMO systems. Using Finite State Machine (FSM), the CPM symbols can be modeled as Markov source by combining channel and CPM modulation. Thus the capacity of CPM signals can be derived in form of the erroneous probability and normalized CPM bandwidth. In addition, the capacity of CPM MIMO systems is derived over Gaussian channels and Rayleigh channels. Finally, numerical simulations are implemented according to various parameters such as modulation scheme, modulation index h, memory length L , and antenna configuration.
KeywordsCapacityContinuous Phase ModulationMIMORayleigh Channel
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