تصفح Electrical Engineering حسب الموضوع "Quadrature amplitude modulation"
السجلات المعروضة 1 -- 3 من 3
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Joint hierarchical modulation and network coding for two way relay networks
( IEEE , 2012 , Conference Paper)The performance of a joint Hierarchical Modulation (HM) and Network Coding (NC) scheme for two way relay networks is introduced and evaluated in this paper. The proposed scheme uses selective relaying based on a signal-to-noise ... -
On hierarchical network coding versus opportunistic user selection for two-way relay channels with asymmetric data rates
( IEEE , 2013 , Article)We address in this paper the challenge of coping with asymmetric data rates in two-way relay channels. We consider a relay network comprising two sources and one relay. The sources communicate at different rates through ... -
Performance of OFDM with M-QAM modulation and optimal loading over rayleigh fading channels
( IEEE , 2004 , Conference Paper)We present optimum bit and power loading algorithms for orthogonal frequency division multiplexing (OFDM) systems using an M-ary quadrature amplitude modulation (M-QAM) scheme. Several scenarios for the amount of channel ...