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Among the promising solutions for improving the data rates of next generation wireless communication system working in frequency selective fading environments, we find Multiple Input Multiple Output (MIMO) ad hoc networks. Many research results show that MIMO technology could be used to ameliorate the spectral efficiently compared with a Single Input Single Output (SISO) system. Also, ad hoc networks...
The optimization of MAPSK modulation is investigated in this paper. Different points are set in different rings of the constellation to maximize the minimum Euclidean Distance. The optimum ring ratio is given and the performance of optimized MAPSK under AWGN channel is evaluated. Simulation results show that optimized MAPSK is superior to the conventional MQAM and it can be a potential choice for...
This paper explores the attributes, layering models and objective functions in cross layer designs for mobile ad hoc wireless networks by taking all the statistical characteristics and constraints from the physical (PHY) layer, media access control (MAC) layer and network (NET) layer into consideration. This paper reviews the entire network optimization across all the PHY/MAC/NET layers. At the PHY...
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