{"title":"Post-resource sharing power allocation in cellular networks to coexist with D2D underlay","authors":"Nandish P. Kuruvatti, H. Schotten","doi":"10.1109/NOF.2016.7810136","DOIUrl":null,"url":null,"abstract":"Device to Device communications (D2D) is considered as a key technology component in fifth generation (5G) of mobile communication, which anticipates higher user density and traffic volume than in present. D2D communication aims to offload base station from traffic routing by enabling direct link between communicating devices in proximity. D2D underlay allows a D2D pair to reuse resources with a cellular link, leading to better spectrum utilization. However, D2D transmission causes significant interference to cellular link with which it reuses physical resource block (PRB), thereby hindering cellular performance. Regulating D2D transmissions to mitigate the aforementioned problem would mean sub-optimal exploitation of D2D communications. As a solution, post-resource allocation power control at cellular users is proposed in this paper. Three schemes namely interference aware power control, blind power control and threshold based power control are discussed. Simulation results show reductions in dropping of cellular users due to interference from D2D transmissions, improvement in throughput at base station (uplink) while not hindering the D2D performance.","PeriodicalId":208097,"journal":{"name":"2016 7th International Conference on the Network of the Future (NOF)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 7th International Conference on the Network of the Future (NOF)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NOF.2016.7810136","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
Device to Device communications (D2D) is considered as a key technology component in fifth generation (5G) of mobile communication, which anticipates higher user density and traffic volume than in present. D2D communication aims to offload base station from traffic routing by enabling direct link between communicating devices in proximity. D2D underlay allows a D2D pair to reuse resources with a cellular link, leading to better spectrum utilization. However, D2D transmission causes significant interference to cellular link with which it reuses physical resource block (PRB), thereby hindering cellular performance. Regulating D2D transmissions to mitigate the aforementioned problem would mean sub-optimal exploitation of D2D communications. As a solution, post-resource allocation power control at cellular users is proposed in this paper. Three schemes namely interference aware power control, blind power control and threshold based power control are discussed. Simulation results show reductions in dropping of cellular users due to interference from D2D transmissions, improvement in throughput at base station (uplink) while not hindering the D2D performance.
设备到设备通信(Device to Device communication, D2D)被认为是第五代移动通信(5G)的关键技术组成部分,预计用户密度和流量将比目前更高。D2D通信旨在通过在邻近的通信设备之间实现直接连接,从而使基站从通信路由中解脱出来。D2D底层允许D2D对通过蜂窝链路重用资源,从而更好地利用频谱。然而,D2D传输会对蜂窝链路造成严重干扰,从而重用物理资源块(PRB),从而阻碍蜂窝性能。规范D2D传输以缓解上述问题将意味着对D2D通信的次优利用。为此,本文提出了对蜂窝用户进行资源分配后功率控制的方法。讨论了干扰感知功率控制、盲功率控制和基于阈值的功率控制三种方案。仿真结果表明,由于D2D传输的干扰,减少了蜂窝用户的下降,提高了基站(上行链路)的吞吐量,同时不妨碍D2D性能。