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Energy efficient transmission in wireless networks is an important issue for green communications which contribute not only to goals for sustainable development, but also to the profitability of the telecommunication industry. In this article, an energy-efficient opportunistic multicast scheduling is proposed, which is based on superposition coding (SC) for multiple mixed unicast and multicast traffics...
In this paper a multi-dimensional markovian chain model is proposed to study the relationship between wireless network performance and key system parameters such as basic parameters of multiple traffic types, wireless network parameters, number of traffic users and voice load in the system. Using Poisson and ON/OFF traffic models to describe the characteristics of voice and data traffic respectively,...
A scheme transmitting superposition coding (SC), which superimposes unicast data to multicast data, using opportunistic multicast scheduling (OMS) scheme, is proposed and its performance is evaluated and simulated in this paper. Although the scheme is a little weaker than traditional scheme using QPSK modulation method in bit error rate (BER) performance, its throughput and system time delay promote...
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