IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference最新文献_第8页

Routing in Three Dimensional Wireless Sensor Networks 三维无线传感器网络中的路由

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.25

Tarek El Salti, N. Nasser

引用次数: 8

Stability of Multiple Receiving Nodes Slotted ALOHA for Wireless Ad Hoc Networks 无线自组织网络中多接收节点开槽ALOHA的稳定性

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.49

J. Sarker, Hussein T. Mouftah

引用次数: 15

Cross-Layer Rate Allocation for Multimedia Applications in Pervasive Computing Environment 普适计算环境下多媒体应用的跨层速率分配

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.443

Liang Zhou, B. Geller, A. Wei, B. Zheng, Jingwu Cui, Shan Xu

{"title":"Cross-Layer Rate Allocation for Multimedia Applications in Pervasive Computing Environment","authors":"Liang Zhou, B. Geller, A. Wei, B. Zheng, Jingwu Cui, Shan Xu","doi":"10.1109/GLOCOM.2008.ECP.443","DOIUrl":"https://doi.org/10.1109/GLOCOM.2008.ECP.443","url":null,"abstract":"An important issue for supporting multimedia applications in multiple heterogeneous networks, a typical pervasive computing environment, is how to optimize the rate allocation by intelligently utilizing the available network resources while, at the same time, to meet each application's QoS (Quality of Service) requirement. In this work, we develop and evaluate a rate allocation scheme in terms of audio and video applications based on a cross-layer design framework. At first, we construct a general distortion model according to the observed parameters in each network, as well as each application's rate-distortion characteristic. Then, the rate allocation is formulated as a convex optimization problem that minimizes the sum of the expected distortion of all applications. Furthermore, the realization of the distributed rate allocation algorithm for achieving an optimal or close-to-optimal end-to-end QoS under the overall limited resource budget is the highlight of this paper. Simulation results are provided which demonstrate the effectiveness of our proposed distributed rate allocation scheme.","PeriodicalId":297815,"journal":{"name":"IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference","volume":"64 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131561581","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: 12

TCP SPC: Statistic Process Control for Enhanced Transport over Wireless Links TCP SPC:无线链路上增强传输的统计过程控制

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.1041

Dawei Gao, Y. Shu, Li Yu, M. Sanadidi, M. Gerla

引用次数: 7

Direct Location Estimation for MIMO Systems in Multipath Environments 多路径环境下MIMO系统的直接定位估计

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.646

K. Papakonstantinou, D. Slock

引用次数: 7

Rate-Based Channel Assignment Algorithm for Multi-Channel Multi-Rate Wireless Mesh Networks 基于速率的多通道多速率无线网状网络信道分配算法

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.125

Sok-Hyong Kim, Young-Joo Suh

{"title":"Rate-Based Channel Assignment Algorithm for Multi-Channel Multi-Rate Wireless Mesh Networks","authors":"Sok-Hyong Kim, Young-Joo Suh","doi":"10.1109/GLOCOM.2008.ECP.125","DOIUrl":"https://doi.org/10.1109/GLOCOM.2008.ECP.125","url":null,"abstract":"Wireless Mesh Networks (WMNs) support the cost-effective broadband access for Internet users. Although today's IEEE 802.11 PHY and MAC specifications provide multi-channel and multi-rate capabilities, exploiting available channels and data rates is a critical issue to guarantee high network performance. In multi-rate wireless networks, high-rate links heavily suffer from performance degradation due to the presence of low-rate links. This problem is often referred to as performance anomaly. In this paper, we propose a Rate-Based Channel Assignment (RB-CA) algorithm to alleviate performance anomaly in multi-channel multi-rate WMNs. By exploiting multiple channels, the proposed algorithm alters a low-rate single-hop path to a high-rate multi-hop path. With RB-CA, a large volume of traffics in WMNs can be simultaneously delivered from or to the Internet via multiple non-overlapping channels as well as high-rate links. Extensive ns-2 simulation experiments have been performed to evaluate the performance of RB-CA and compared it with the existing WMN architecture. Our simulation results show that RB-CA outperforms existing scheme in terms of packet delivery ratio and end-to-end delay.","PeriodicalId":297815,"journal":{"name":"IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131024709","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: 19

User-Classified Dynamic Resource Allocation for Real-Time VBR Video Transmission Based on Time-Domain Traffic Prediction 基于时域流量预测的VBR视频实时传输用户分类动态资源分配

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.277

Zhiyuan Xu, Hui Li, Yueming Lu, Yuefeng Ji

引用次数: 3

On Optimal Transmission Range for Multihop Cellular Networks 多跳蜂窝网络的最优传输距离研究

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.820

R. S. Ojha, K. Govindan, S. Merchant, U. Desai

{"title":"On Optimal Transmission Range for Multihop Cellular Networks","authors":"R. S. Ojha, K. Govindan, S. Merchant, U. Desai","doi":"10.1109/GLOCOM.2008.ECP.820","DOIUrl":"https://doi.org/10.1109/GLOCOM.2008.ECP.820","url":null,"abstract":"In this paper analytical relationship between transmission range and the network connectivity is obtained as a function of number of nodes for CDMA based multihop cellular network (MCN). We show that for a network of n uniformly distributed nodes in a single cell of unit radius, the transmission range r should be sufficiently larger than radic(2 ln n/n-1) to achieve asymptotic full connectivity. The distribution of the nodes may not be uniform in case of mobility. In such case a mobility model dependent lower bound on transmission range is obtained. We show that for RWP model the lower bound for the nodes which lie completely inside the cell is same as the corresponding uniform node distribution case. However, for nodes on boundary the transmission range lower bound is 3radic(ln/n) which is larger than the corresponding uniform node distribution case. Our findings show that more transmission range is required at the boundary to establish better connectivity and hence a variable transmission range control mechanism is necessary. In addition to lower bound, we also propose a method to choose the optimal value of transmission range using a scheduling mechanism and ensure that the optimal value is always greater than the lower bound. Thus obtained transmission range could be used to select the transmission power of the nodes in a meaningful way and hence the nodes' isolation could be avoided and the spectral efficiency can be increased. We demonstrate empirically, that the proposed transmission range control mechanism increases the network connectivity as well as spatial reuse of the resources.","PeriodicalId":297815,"journal":{"name":"IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130837247","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: 8

Throughput Analysis of Wireless Relay Slotted ALOHA Systems with Network Coding 带网络编码的无线中继开槽ALOHA系统吞吐量分析

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.953

D. Umehara, Tomoya Hirano, S. Denno, M. Morikura

{"title":"Throughput Analysis of Wireless Relay Slotted ALOHA Systems with Network Coding","authors":"D. Umehara, Tomoya Hirano, S. Denno, M. Morikura","doi":"10.1109/GLOCOM.2008.ECP.953","DOIUrl":"https://doi.org/10.1109/GLOCOM.2008.ECP.953","url":null,"abstract":"This paper deals with a simple but essential two-hop wireless relay network employing network coding and a slotted ALOHA protocol. Network coding is a recent and highly regarded technology for capacity enhancement on multiple unicast and multisource multicast networks. However, the performance of network coding on wireless relay networks employing random access protocols has not been analyzed. This paper provides closed-form expressions for the throughput and delay on two- hop wireless relay networks both with and without network coding from a theoretical perspective of the slotted ALOHA protocol. The analytical results are derived by solving queueing systems for the buffer activity at the relay node. The results show that the transmission probability of the relay node is a design parameter that is crucial to maximizing the achievable throughput of slotted ALOHA with network coding on a two-hop wireless relay network. Furthermore, this paper clarifies that the throughput is enhanced by controlling the transmission probability of the relay node such that it has considerable opportunity for network coding.","PeriodicalId":297815,"journal":{"name":"IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference","volume":"4 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131001949","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: 16

Efficient Tracking of Moving Targets by Passively Handling Traces in Sensor Networks 传感器网络中被动处理轨迹的运动目标有效跟踪

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference Pub Date : 2008-12-08 DOI: 10.1109/GLOCOM.2008.ECP.60

A. Marculescu, S. Nikoletseas, O. Powell, J. Rolim

引用次数: 13