Social Network Aware Device-to-Device Communication in Wireless Networks
IEEE Transactions on Wireless Communications(2015)
摘要
Device-to-device (D2D) communication is seen as a major technology to overcome the imminent wireless capacity crunch and to enable new application services. In this paper, a novel social-aware approach for optimizing D2D communication by exploiting two layers, namely the social network layer and the physical wireless network layer, is proposed. In particular, the physical layer D2D network is captured via the users' encounter histories. Subsequently, an approach, based on the so-called Indian Buffet Process, is proposed to model the distribution of contents in the users' online social networks. Given the social relations collected by the base station, a new algorithm for optimizing the traffic offloading process in D2D communications is developed. In addition, the Chernoff bound and approximated cumulative distribution function (cdf) of the offloaded traffic are derived and the validity of the bound and cdf is proven. Simulation results based on real traces demonstrate the effectiveness of our model and show that the proposed approach can offload the network's traffic successfully.
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关键词
d2d communication,cellular radio,approximation theory,social network,physical wireless network layer,social network layer,chernoff bound,wireless networks,indian buffet process,social network aware device-to-device communication,approximated cumulative distribution function,device-to-device communication,traffic offloading process,social networking (online),quality of service,approximation algorithms
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