Mobility-aware spatial interference cancellation for mobile ad hoc networks

2010 International Conference on Information and Communication Technology Convergence (ICTC) Pub Date : 2010-12-23 DOI:10.1109/ICTC.2010.5674722

Jihong Park, Kaibin Huang, Sungyoon Cho, Dong Ku Kim

{"title":"Mobility-aware spatial interference cancellation for mobile ad hoc networks","authors":"Jihong Park, Kaibin Huang, Sungyoon Cho, Dong Ku Kim","doi":"10.1109/ICTC.2010.5674722","DOIUrl":null,"url":null,"abstract":"Interference limits the throughput of a mobile ad hoc network (MANET). Multi-antennas can be employed at a node for interference cancellation besides attaining array gain. Spatial interference cancellation requires each node to estimate the interference channels, which is potentially inaccurate due to node mobility. As a result, maximizing the network capacity requires optimally allocating spatial degrees of freedom (DoF) to cancel interference and enhance link reliability based on the node mobility. This paper addresses this issue for a MANET with Poisson distributed transmitters and employing zero-forcing beam for spatial interference cancellation. Specifically, the residual interference power for each node from partially canceled interferers is characterized as a function of Doppler frequency and the number of DoF for interference cancellation is shown to decrease with the Doppler frequency. The adaption of spatial interference cancellation to mobility is observed to significantly improve the network performance in terms of both outage probability and capacity compared with the case without adaptation.","PeriodicalId":149198,"journal":{"name":"2010 International Conference on Information and Communication Technology Convergence (ICTC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 International Conference on Information and Communication Technology Convergence (ICTC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICTC.2010.5674722","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

Abstract

Interference limits the throughput of a mobile ad hoc network (MANET). Multi-antennas can be employed at a node for interference cancellation besides attaining array gain. Spatial interference cancellation requires each node to estimate the interference channels, which is potentially inaccurate due to node mobility. As a result, maximizing the network capacity requires optimally allocating spatial degrees of freedom (DoF) to cancel interference and enhance link reliability based on the node mobility. This paper addresses this issue for a MANET with Poisson distributed transmitters and employing zero-forcing beam for spatial interference cancellation. Specifically, the residual interference power for each node from partially canceled interferers is characterized as a function of Doppler frequency and the number of DoF for interference cancellation is shown to decrease with the Doppler frequency. The adaption of spatial interference cancellation to mobility is observed to significantly improve the network performance in terms of both outage probability and capacity compared with the case without adaptation.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

移动自组织网络的移动感知空间干扰消除

干扰限制了移动自组网(MANET)的吞吐量。除了获得阵列增益外，还可以在一个节点上使用多天线来消除干扰。空间干扰消除需要每个节点估计干扰通道，由于节点的移动性，这可能是不准确的。因此，为了实现网络容量的最大化，需要基于节点的移动性优化分配空间自由度，以消除干扰，提高链路可靠性。本文针对泊松分布发射机和采用零强迫波束进行空间干扰抵消的MANET解决了这一问题。具体地说，来自部分消除干扰的每个节点的剩余干扰功率被表征为多普勒频率的函数，干扰消除的DoF数随着多普勒频率的增加而减少。空间干扰抵消对移动性的适应与不适应相比，在中断概率和容量方面显著提高了网络性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

2010 International Conference on Information and Communication Technology Convergence (ICTC)

自引率

0.00%

发文量