2007 IEEE Wireless Communications and Networking Conference最新文献

筛选
英文 中文
The Impact of Wakeup Schedule Distribution in Asynchronous Power Save Protocols on the Performance of Multihop Wireless Networks 异步省电协议中唤醒调度分配对多跳无线网络性能的影响
2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.581
L. Feeney, C. Rohner, B. Ahlgren
{"title":"The Impact of Wakeup Schedule Distribution in Asynchronous Power Save Protocols on the Performance of Multihop Wireless Networks","authors":"L. Feeney, C. Rohner, B. Ahlgren","doi":"10.1109/WCNC.2007.581","DOIUrl":"https://doi.org/10.1109/WCNC.2007.581","url":null,"abstract":"By definition, the operation of an asynchronous power save protocol permits an arbitrary distribution of nodes' wakeup schedules. This wakeup schedule distribution creates an uncoordinated pattern of times at which nodes attempt to transmit. Intuitively, we would expect that some patterns are more (or less) favorable than others for a given traffic pattern. We investigate the impact of this wakeup pattern on network capacity and present simulation data showing that the capacity associated with the best wakeup patterns is significantly larger than that of the worst. This result not only gives insight to the behavior of such protocols, but also acts as a feasibility study showing the potential benefit of mechanisms by which nodes adapt their wakeup schedules to obtain improved performance.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129980550","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: 9
Route-Aware Load-Balanced Resource Allocation for Wireless Mesh Networks 无线Mesh网络的路由感知负载均衡资源分配
2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.572
K. Lin, Cheng-Fu Chou
{"title":"Route-Aware Load-Balanced Resource Allocation for Wireless Mesh Networks","authors":"K. Lin, Cheng-Fu Chou","doi":"10.1109/WCNC.2007.572","DOIUrl":"https://doi.org/10.1109/WCNC.2007.572","url":null,"abstract":"Multi-channel wireless mesh networks (WMNs) aim to perform ubiquitous wireless broadband network access. In WMNs, much attention has been paid to the problem of resource allocation, i.e., how to utilize multiple orthogonal channels and multiple communication radios to enhance the aggregate throughput efficiently. Routing and resource allocation correlatively determine the performance of WMNs. Thus, this paper proposes a route-aware resource allocation algorithm to distribute total traffic load over diverse radios and channels based on route information. The simulation results show that route-aware resource allocation can balance the workload among all available resources (radios and channels) and achieve the higher aggregate throughput and fairness.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134229205","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: 6
Evaluation of Co-channel and Adjacent Channel Interference for Multiple Bluetooth Piconets with Dual Channel Transmission 双通道传输多蓝牙微网的同信道和相邻信道干扰评估
2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.440
Jingli Li, Xiangqian Liu
{"title":"Evaluation of Co-channel and Adjacent Channel Interference for Multiple Bluetooth Piconets with Dual Channel Transmission","authors":"Jingli Li, Xiangqian Liu","doi":"10.1109/WCNC.2007.440","DOIUrl":"https://doi.org/10.1109/WCNC.2007.440","url":null,"abstract":"The paper proposed a frequency diversity technique for Bluetooth, namely dual channel transmission (DCT), to reduce the packet error rate (PER) due to inter-piconet interference when multiple Bluetooth piconets coexist. With DCT, the same packet is transmitted on two distinct frequency hopped channels simultaneously, and the power used in each channel is half of what would be used in single channel transmission (SCT). A packet is successfully received if at least one channel survives. There is a tradeoff between the increased reliability due to the diversity offered by DCT, and the potentially increased interference due to the use of extra channel. The authors evaluate the performance of DCT when co-channel and adjacent channel interference, as well as wireless propagation characteristics are considered. It is shown that with DCT, the PER is significantly lower than that of SCT when a small number of piconets coexist. Numerical simulations validate the analysis and demonstrate the effectiveness of DCT.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134419996","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: 4
M-ary Signaling for Ultra Wideband Communication Systems Based on Pulse Position and Orthogonal Pulse Shape Modulation 基于脉冲位置和正交脉冲形状调制的超宽带通信系统M-ary信令
2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.519
S. Majhi, A. Madhukumar, A. Premkumar, F. Chin
{"title":"M-ary Signaling for Ultra Wideband Communication Systems Based on Pulse Position and Orthogonal Pulse Shape Modulation","authors":"S. Majhi, A. Madhukumar, A. Premkumar, F. Chin","doi":"10.1109/WCNC.2007.519","DOIUrl":"https://doi.org/10.1109/WCNC.2007.519","url":null,"abstract":"This paper describes a combined modulation scheme for time hopping ultra wideband (TH-UWB) radio systems based on orthogonal pulse position modulation (OPPM) and bi-orthogonal pulse shape modulation (BPSM). A set of M=2k symbols are constructed by using L = 2l orthogonal pulse positions and N = 2k-l-1 biorthogonal pulses, where k > 1 and l are nonnegative integers such that 0 les l les k-1. The selection of the number of pulse positions and pulses depends on the system performance and the availability of orthogonal pulses with estimable auto-correlation properties. This scheme allows an increase in the number of bits per symbol and consequently, reduces the duration of the pulse repetition interval which is obtain by increasing the number of orthogonal pulses. The proposed scheme achieves higher data rate by using a large number of orthogonal pulses in the same pulse repetition interval. It also reduces the system complexity by half by introducing antipodal version of orthogonal pulses. The proposed transmission scheme is analyzed through computer simulations in a multipath channel using two sets of orthogonal pulses.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133915515","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
Improving Routing Performance Under the Fading Environment by Utilizing Position Information 利用位置信息提高衰落环境下的路由性能
2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.776
Suhua Tang, Masahiro Watanabe, N. Kadowaki, S. Obana
{"title":"Improving Routing Performance Under the Fading Environment by Utilizing Position Information","authors":"Suhua Tang, Masahiro Watanabe, N. Kadowaki, S. Obana","doi":"10.1109/WCNC.2007.776","DOIUrl":"https://doi.org/10.1109/WCNC.2007.776","url":null,"abstract":"Performance of mobile ad hoc networks (MANET) routing protocols may be greatly degraded due to involvement of weak links in the routes. One solution is to use directional antenna to improve link quality. The other is to less prefer weak links. In the experiments we found that even with the two methods the system performance is still limited in the presence of mobility and multipath fading due to the following facts: (1) beam scanning overhead and frequent beam variations, (2) route instability due to metric variation and false link breaks. Then we improve it by three schemes: (i) Calculate the antenna beam by position information, (ii) Calculate a stable link metric from the expectation value of received signal strength indication (RSSI). (iii) Avoid false link breaks. These schemes are suitable for the scenarios where both line of sight path and multipath fading exist. The experiment and simulation results indicate that the schemes can effectively reduces PER and improve throughput of AODV in the Rician fading situations.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134285647","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: 0
Modeling Detection Metrics in Randomized Scheduling Algorithm in Wireless Sensor Networks 无线传感器网络随机调度算法中的检测度量建模
2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.685
Yang Xiao, Hui Chen, Kui Wu, Bo Sun, Chong Liu
{"title":"Modeling Detection Metrics in Randomized Scheduling Algorithm in Wireless Sensor Networks","authors":"Yang Xiao, Hui Chen, Kui Wu, Bo Sun, Chong Liu","doi":"10.1109/WCNC.2007.685","DOIUrl":"https://doi.org/10.1109/WCNC.2007.685","url":null,"abstract":"In wireless sensor networks, in order to minimize energy consumption and extend network lifetime, some sensors are put in the sleep mode while the other sensor nodes are in the active mode for the sensing and communication tasks. In a randomized scheduling algorithm, a set of sensors work alternatively. In this paper, we provide an analytical model for the randomized scheduling algorithm, and derive detection delay and detection probability. Simulations are conducted to validate analytical results.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134294432","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
Network-Driven Receive Diversity Activation 网络驱动的接收多样性激活
2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.339
E. Hardouin
{"title":"Network-Driven Receive Diversity Activation","authors":"E. Hardouin","doi":"10.1109/WCNC.2007.339","DOIUrl":"https://doi.org/10.1109/WCNC.2007.339","url":null,"abstract":"This paper introduces a mechanism allowing the network to command dynamically and individually the user equipments (UEs) to activate or deactivate receive (Rx) diversity for circuit-switched (CS) services, in order to enhance the radio capacity when needed, while saving the UEs' battery when possible. The salient features of the proposed scheme are: the possibility to tune the network capacity as a function of the load, requesting UEs to adopt a power-consuming receiver configuration only when needed by the network; the guarantee that the UEs deactivating Rx diversity is not request more power than available after a configuration change, ensuring a safe network behaviour; a small amount of feedback between the UEs and the base station (4 information bits in the uplink and one bit in the downlink, to be transmitted with a low periodicity). In addition, we describe a heuristic method for determining the most appropriate configurations of the UEs as a function of the system load. System-level simulations show that the proposed scheme allows an average peak CS capacity increase ranging between 15 % and 85% with respect to an autonomous UE configuration scheme, depending on the parametrization of the latter.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134339209","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: 0
Performance Analysis of a Power-Constrained Cross-Layer Scheduling Using Artificial Neural Networks 基于人工神经网络的功率约束跨层调度性能分析
2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.286
A. Gyasi-Agyei
{"title":"Performance Analysis of a Power-Constrained Cross-Layer Scheduling Using Artificial Neural Networks","authors":"A. Gyasi-Agyei","doi":"10.1109/WCNC.2007.286","DOIUrl":"https://doi.org/10.1109/WCNC.2007.286","url":null,"abstract":"Cross-layer scheduling has received an intense attention recently owing to the desire to exploit protocol interactions to design optimum systems that are adaptable to service requirements of network applications. This article discusses a Lyapunov stable power-constrained opportunistic scheduler that makes an optimum use of the wireless spectrum while guaranteeing a minimum service to all flows active in multi-flow, multiuser wireless systems. We formulate the constrained scheduling problem as a dynamic system of differential equations. We then establish a Lyapunov function for the dynamic system associated with the search for an optimum solution for the constrained convex optimization problem, and then apply Lyapunov stability theory to prove the system's convergence. The system of differential equations is used to excite a neural network whose outputs are the solutions to the constrained optimization problem.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131568743","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: 0
Dynamic Spectrum Access and Joint Radio Resource Management Combining for Resource Allocation in Cooperative Networks 面向合作网络资源分配的动态频谱接入与联合无线电资源管理相结合
2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.510
M. Pan, Jie Chen, Ruoju Liu, Z. Feng, Ying Wang, Ping Zhang
{"title":"Dynamic Spectrum Access and Joint Radio Resource Management Combining for Resource Allocation in Cooperative Networks","authors":"M. Pan, Jie Chen, Ruoju Liu, Z. Feng, Ying Wang, Ping Zhang","doi":"10.1109/WCNC.2007.510","DOIUrl":"https://doi.org/10.1109/WCNC.2007.510","url":null,"abstract":"This driven by the need to promote a more efficient use of radio resources and improve the operators' profits, resource allocation has turned into a joint technical and economical problem. At the same time, as a possible enabling solution, game theory has been applied to either dynamic spectrum access (DSA) or joint radio resource management (JRRM) in wireless communication research recently. In this paper, we propose a novel DSA and JRRM combined approach to resource allocation in cooperative networks. With the scenario that distributed reconfigurable radio access networks (RAN) are controlled by different operators, the emerging concept of resource trading is introduced and new entities, such as trading agents (TA), are described. Meanwhile, Shapley value in cooperative game as well as its economic model is exploited to share the profits among the trading RANs. Numerical results show that comparing with existing DSA or JRRM methods, our scheme has better effect in maximizing the individual operator's profits and improving the efficiency of radio resources utilization.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"31 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131686889","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: 5
A Joint Power Control, Link Scheduling and Rate Control Algorithm for Wireless Ad Hoc Networks 无线自组织网络中一种联合功率控制、链路调度和速率控制算法
2007 IEEE Wireless Communications and Networking Conference Pub Date : 2007-03-01 DOI: 10.1109/WCNC.2007.666
V. Zheng, Xinming Zhang, D. Liu, D. Sung
{"title":"A Joint Power Control, Link Scheduling and Rate Control Algorithm for Wireless Ad Hoc Networks","authors":"V. Zheng, Xinming Zhang, D. Liu, D. Sung","doi":"10.1109/WCNC.2007.666","DOIUrl":"https://doi.org/10.1109/WCNC.2007.666","url":null,"abstract":"In this paper, we present a joint power control, link scheduling and rate control (PSR) algorithm for wireless ad hoc networks by using the convex optimization theory. This algorithm practically considers the power control problem in the interference-based link scheduling process, and provides a congestion control on the transport layer. Both our theoretical analysis and simulation results prove that the PSR algorithm can converge quickly and is possible for distributed implementation in the wireless ad hoc networks.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130902558","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: 11
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信