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Cloud radio access network (Cloud-RAN) has great potentials to improve energy efficiency and increase capacity of wireless networks. In this paper, we study the green communication for Cloud-RANs. Instead of only focusing on the transmit power consumption, we minimize the network power consumption which includes not only transmit power consumption but also circuit power consumption. In addition, we...
With the continuous increase of mobile Internet traffic, the user-centric ultra-dense network (UUDN) is proposed as one of the promising solutions to provide very high area throughput density and flexible access service for users. The limited radio resources cause serious competition among numerous APs. Thus, Non-orthogonal multiple access (NOMA), which supports multiple signals transmission on the...
With the explosive growth of smart devices and mobile data traffic, limited fronthaul capacity has become a notable bottleneck of green communication access networks, such as cloud radio access networks(C-RANs). In this paper, we proposed a joint user association and downlink beamforming scheme for green C-RANs to minimize the network power consumption with the limited fronthaul links. We first formulate...
Considering the rampant growth of data traffic and exponential increasing energy consumption in recent years, energy efficiency is becoming more and more crucial in cooperative communication systems where the wireless devices are battery operated. In this paper, we focus on the energy efficient transmission problem in a one source relay-based cooperative network, aims to find the most energy efficient...
Multi-source multimedia transmission is a popular approach in wireless peer-to-peer networks. Most previous related work concentrates on the protocols and network structures, and consequently ignores the multiple senders scheduling problem. In this paper, we present a distributed sender scheduling algorithm for multi-source transmission in wireless P2P networks, which can maximize the data rate and...
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