Abstract
In multiple antenna systems like Multiple Input Single Output (MISO) or Multiple Input Multiple Output (MIMO), the transmitted signal gets distorted due to various factors such as channel fading, multipath propagation, mobility and transmission bandwidth. Using the concepts of differential signalling and permutation modulation which were developed for wireline channels, a new signalling method is proposed in this paper for MIMO channel configurations. The BER performance of proposed system is systematically evaluated under different channel conditions, which includes Additive White Gaussian Channel (AWGN) and multipath Rayleigh fading conditions under MISO and MIMO configurations. The proposed system gives a performance better than conventional Alamouti space time coding scheme, with the same order of computational complexity. It also performs within the theoretical upper bound plotted under AWGN conditions.
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