2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks最新文献_第3页

Max-min weighted SINR in coordinated multicell MIMO downlink 协调多小区MIMO下行链路的最大最小加权信噪比

2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks Pub Date : 2011-05-09 DOI: 10.1109/WIOPT.2011.5930029

Desmond W. H. Cai, Tony Q. S. Quek, C. Tan, S. Low

引用次数: 13

Distributed function computation in networks: A joint delay-energy perspective 网络中的分布式函数计算:联合延迟-能量视角

2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks Pub Date : 2011-05-09 DOI: 10.1109/WIOPT.2011.5930069

N. Karamchandani, M. Franceschetti

{"title":"Distributed function computation in networks: A joint delay-energy perspective","authors":"N. Karamchandani, M. Franceschetti","doi":"10.1109/WIOPT.2011.5930069","DOIUrl":"https://doi.org/10.1109/WIOPT.2011.5930069","url":null,"abstract":"This paper considers the following network computation problem: n nodes are placed on a √n×√n grid, each node is connected to every other node within distance r(n) from itself, and is given an arbitrary input bit. Nodes communicate with each other so that finally a designated sink node can compute a target function f of the input bits. We focus on computing the identity function and the class of symmetric functions under two different communication models. We first consider a noiseless model where links are independent and noise-free, suitable for modeling wired networks. Next, we study a noisy broadcast model in which when a node transmits a bit, each of its neighbors receives a noisy copy of the bit. This is a simple model for wireless communications, originally proposed by El Gamal (1987). We use the protocol model for interference and nodes which do not share neighbors are allowed to transmit simultaneously. For every connection radius r(n), we present lower bounds on the minimum number of transmissions and the minimum number of time slots required to compute f. We then describe efficient protocols which can match both these lower bounds up to a constant factor.","PeriodicalId":430755,"journal":{"name":"2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122698857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Joint routing, scheduling, and network coding for wireless multihop networks 无线多跳网络的联合路由、调度和网络编码

2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks Pub Date : 2011-05-09 DOI: 10.1109/WIOPT.2011.5930037

S. Shabdanov, C. Rosenberg, P. Mitran

引用次数: 32

Ergodic spatial throughput of wireless ad hoc networks with Markovian fading channels 马尔可夫衰落信道无线自组网的遍历空间吞吐量

2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks Pub Date : 2011-05-09 DOI: 10.1109/WIOPT.2011.5930042

Chun-Hung Liu, J. Andrews

引用次数: 3

Random access in coded wireless packet networks: Feasibility and distributed optimization 编码无线分组网络中的随机接入:可行性和分布式优化

2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks Pub Date : 2011-05-09 DOI: 10.1109/WIOPT.2011.5930001

Maximilian Riemensberger, W. Utschick

引用次数: 3

Competition and cooperation in wireless access misbehavior 无线接入不当行为的竞争与合作

2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks Pub Date : 2011-05-09 DOI: 10.1109/WIOPT.2011.5930027

I. Koutsopoulos

引用次数: 0

Spatial inefficiency of MaxWeight scheduling MaxWeight调度的空间低效性

2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks Pub Date : 2011-05-09 DOI: 10.1109/WIOPT.2011.5930066

P. Ven, S. Borst, Lei Ying

{"title":"Spatial inefficiency of MaxWeight scheduling","authors":"P. Ven, S. Borst, Lei Ying","doi":"10.1109/WIOPT.2011.5930066","DOIUrl":"https://doi.org/10.1109/WIOPT.2011.5930066","url":null,"abstract":"MaxWeight scheduling has gained enormous popularity as a powerful paradigm for achieving queue stability and maximum throughput in a wide variety of scenarios. The maximum-stability guarantees however rely on the fundamental premise that the system consists of a fixed set of flows with stationary ergodic traffic processes. In the present paper we examine networks where the population of active flows varies over time, as flows eventually end while new flows occasionally start. We show that MaxWeight policies may fail to provide maximum stability due to persistent inefficient spatial reuse. The intuitive explanation is that these policies tend to serve flows with large backlogs, even when the resulting spatial reuse is not particularly efficient, and fail to exploit maximum spatial reuse patterns involving flows with smaller backlogs. These results indicate that instability of MaxWeight scheduling can occur due to spatial inefficiency in networks with fixed transmission rates, which is fundamentally different from the inability to fully exploit time-varying rates shown in prior work. We discuss how the potential instability effects can be countered by spatial traffic aggregation, and describe some of the associated challenges and performance trade-offs.","PeriodicalId":430755,"journal":{"name":"2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114636084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Iterative equalization enhanced high data rate in wireless communication networks 迭代均衡增强了无线通信网络的高数据速率

2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks Pub Date : 2011-05-09 DOI: 10.1109/WIOPT.2011.5930044

G. Oletu, P. Rapajic, T. Eneh, K. Anang

引用次数: 1

Benefits of transmit and receive diversity in enterprise femtocell deployments 企业移动基站部署中发射和接收多样性的好处

2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks Pub Date : 2011-05-09 DOI: 10.1109/WIOPT.2011.5930063

Yi Jiang, Yan Zhou, Mohit Anand, Farhad Meshkati, V. Chande, Norman Ko, M. Yavuz

{"title":"Benefits of transmit and receive diversity in enterprise femtocell deployments","authors":"Yi Jiang, Yan Zhou, Mohit Anand, Farhad Meshkati, V. Chande, Norman Ko, M. Yavuz","doi":"10.1109/WIOPT.2011.5930063","DOIUrl":"https://doi.org/10.1109/WIOPT.2011.5930063","url":null,"abstract":"In this paper, we study the benefits of transmit and receive diversity for enterprise UMTS femtocell deployments. Indoor enterprise femtocell deployments face a single-path slow fading wireless environment that may lead to frequent hard handovers in the boundary region of neighboring femtocells and consequent degradation in the voice quality experienced by the users. In the absence of soft-handover (SHO) support, transmit diversity at the femtocell can combat single-path fading channel. We demonstrate through over-the-air tests that transmit diversity is very effective in reducing the number of hard handovers and therefore results in significant improvement in voice quality for enterprise users. On the uplink, we study system stability using an analytical approach. We derive analytical conditions for system stability with and without receive diversity at the femtocells. Using this analytical framework, benefits of receive diversity in maintaining system stability and preventing uplink power racing between neighboring femtocells are quantified. It is shown that, in the absence of SHO, receive diversity is very effective in maintaining system stability by preventing potential uplink power racing caused by inter-femto interference.","PeriodicalId":430755,"journal":{"name":"2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks","volume":"394 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115568284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Impact of time-correlated arrivals on the performance of backpressure-based stochastic network control 时间相关到达对基于背压的随机网络控制性能的影响

2011 International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks Pub Date : 2011-05-09 DOI: 10.1080/15427951.2012.665782

Jeongho Jeon, A. Ephremides

引用次数: 1