2008 Fourth International Conference on Wireless Communication and Sensor Networks最新文献

MILD based sliding contention window mechanism for QoS in Wireless LANs 基于MILD的无线局域网QoS的滑动竞争窗口机制

2008 Fourth International Conference on Wireless Communication and Sensor Networks Pub Date : 2008-12-01 DOI: 10.1109/WCSN.2008.4772691

M. Bharatiya, S. Prasad

{"title":"MILD based sliding contention window mechanism for QoS in Wireless LANs","authors":"M. Bharatiya, S. Prasad","doi":"10.1109/WCSN.2008.4772691","DOIUrl":"https://doi.org/10.1109/WCSN.2008.4772691","url":null,"abstract":"Multimedia applications and real time communications like audio, voice, and video over IEEE 802.11 WLANs requires quality of service (QoS). IEEE 802.11 does not have an in-built QoS supported MAC protocol. Existing work provides service differentiation based on contention window separation (CWS) or variation of the waiting time using Inter Frame Space (IFS). In CWS, the higher priority traffic receives a CW that results in a smaller Backoff Interval (BI) whereas lower priority receives a CW that results in longer BI. Nafaa et al. used Sliding Contention Window (SCW) with Linear-Increase Linear-Decrease (LILD) mechanism as the backoff algorithm. LILD does not provide strict service differentiation in case of high network congestion and suffers from fairness problem. In order to ensure firm service differentiation while maintaining maximum bandwidth utilization and provide fairness, this paper proposes a new MAC protocol for WLANs that uses SCW scheme for each network flow with Multiplicative-Increase Linear-Decrease (MILD) mechanism as the backoff algorithm. The simulation results show that SCW with MILD scheme provide strict service differentiation, increased throughput, decreased delay and better fairness in high network population and high congestion.","PeriodicalId":338962,"journal":{"name":"2008 Fourth International Conference on Wireless Communication and Sensor Networks","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122739339","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

A system for locating users of WLAN using statistical mapping in indoor and outdoor environment-LOIDS 一个利用统计映射在室内和室外环境中定位无线局域网用户的系统

2008 Fourth International Conference on Wireless Communication and Sensor Networks Pub Date : 2008-12-01 DOI: 10.1109/WCSN.2008.4772692

K. Naik, M.N. Giri Prasad

{"title":"A system for locating users of WLAN using statistical mapping in indoor and outdoor environment-LOIDS","authors":"K. Naik, M.N. Giri Prasad","doi":"10.1109/WCSN.2008.4772692","DOIUrl":"https://doi.org/10.1109/WCSN.2008.4772692","url":null,"abstract":"Recent developments in wireless Local Area Networks made usage of wireless technology efficiently. The availability of portable, light weight, hand held computing devices and high speed wireless local area network enabled users to remain connected while moving in indoor or outdoor environment. Wireless local area network has a wide range of utilization while moving from one location to another location. When a user is moving from one location to another, how the other user knows about the required station inside the WLAN. For that we designed and implemented a system to locate a mobile user inside the wireless local area network with the help of RSSI. We designed four different architectures and used statistical mapping. These architectures are based on statistical or we can say manual configuration of radio maps of indoor and outdoor location with the help of available Sniffer based and cluster based techniques. We were also found a better location of a mobile user in WLAN with the help of Pamvotis WLAN simulator. We tested this work in indoor and outdoor environment with different locations.","PeriodicalId":338962,"journal":{"name":"2008 Fourth International Conference on Wireless Communication and Sensor Networks","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123626640","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

Perfect Difference Set - network for Wireless Sensor Networks 无线传感器网络的完美差分集网络

2008 Fourth International Conference on Wireless Communication and Sensor Networks Pub Date : 2008-12-01 DOI: 10.1109/WCSN.2008.4772682

S. Akojwar, R. Patrikar

引用次数: 1

Data clustering in sensor networks using ART 基于ART的传感器网络数据聚类

2008 Fourth International Conference on Wireless Communication and Sensor Networks Pub Date : 2008-12-01 DOI: 10.1109/WCSN.2008.4772681

M. Kumar, S. Verma, P. Singh

{"title":"Data clustering in sensor networks using ART","authors":"M. Kumar, S. Verma, P. Singh","doi":"10.1109/WCSN.2008.4772681","DOIUrl":"https://doi.org/10.1109/WCSN.2008.4772681","url":null,"abstract":"Wireless sensor networks may be deployed in an environment the intrinsic pattern of data is unknown and may not be amenable to statistical aggregation techniques. Moreover, the dynamic nature of the environment may generate large amount data which may be highly similar with few data values that may be noisy or may indicate interesting observation. The present work proposes resonance based clustering of data. The technique works in two phases, offline and online phase. Fuzzy ART is employed as initial clustering process which is performed in the pre deployment offline phase to detect natural sets in data. Fuzzy ART does not require knowledge of the nature of data but in the scheme, the a priori knowledge of the type, range and other parameters are utilized to generate synthetic data to be used for clustering .The small number of data clusters eliminates the need to transfer large amounts of data. To cater to the dynamic nature of the environment, Fuzzy ARTMAP neural network (FAMNN) is employed at the cluster heads in the online phase to determine the group to which sensed data arriving after the formation of groups by ART. FAMNN is able to segregate outliers or form new groups whenever required. This obviates the need of ab initio regroupings or does not force data in one of the existing groups. To test the efficacy of the techniques, Fuzzy ART and FAMNN based clustering was performed and tested on synthetic sensor data with different parameters. Simulation results show that Fuzzy ART and FAMNN are able to identify the natural clusters and map new data to existing clusters or form new clusters to drastically reduce the amount of data required to be sent to the sink.","PeriodicalId":338962,"journal":{"name":"2008 Fourth International Conference on Wireless Communication and Sensor Networks","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130924682","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

Base station initiated dynamic routing protocol for Heterogeneous Wireless Sensor Network using clustering 基于集群的异构无线传感器网络中基站发起的动态路由协议

2008 Fourth International Conference on Wireless Communication and Sensor Networks Pub Date : 2008-12-01 DOI: 10.1109/WCSN.2008.4772672

S. Varma, N. Nigam, U. Tiwary

引用次数: 32

On converting OSTC scheme from non-full rate to full-rate with better error performance 从非全码转换到全码，具有更好的误码性能

2008 Fourth International Conference on Wireless Communication and Sensor Networks Pub Date : 2008-12-01 DOI: 10.1109/WCSN.2008.4772716

Ankur Jain, A. Laufer, Y. Bar-Ness

引用次数: 1

Sweep line algorithm for k-coverage in wireless sensor networks 无线传感器网络k-覆盖的扫描线算法

2008 Fourth International Conference on Wireless Communication and Sensor Networks Pub Date : 2008-12-01 DOI: 10.1109/WCSN.2008.4772683

R. N. Tripathi, S.V. Rao

引用次数: 1

Security enhancements in GSM cellular standard GSM蜂窝标准的安全性增强

2008 Fourth International Conference on Wireless Communication and Sensor Networks Pub Date : 2008-12-01 DOI: 10.1109/WCSN.2008.4772693

Musheer Ahmad, Izharuddin

引用次数: 6

Performance analysis of MIMO space diversity technique for wireless communications 无线通信中MIMO空间分集技术性能分析

2008 Fourth International Conference on Wireless Communication and Sensor Networks Pub Date : 2008-12-01 DOI: 10.1109/WCSN.2008.4772701

V. Sachan, A. Gupta, A. Kumar

引用次数: 5

A balanced 1-hop clustering scheme for Mobile Ad Hoc Network 一种移动Ad Hoc网络均衡1跳聚类方案

2008 Fourth International Conference on Wireless Communication and Sensor Networks Pub Date : 2008-12-01 DOI: 10.1109/WCSN.2008.4772680

S. Udgata, T. Mallikarjun

{"title":"A balanced 1-hop clustering scheme for Mobile Ad Hoc Network","authors":"S. Udgata, T. Mallikarjun","doi":"10.1109/WCSN.2008.4772680","DOIUrl":"https://doi.org/10.1109/WCSN.2008.4772680","url":null,"abstract":"Mobile Ad hoc Networks (MANETs), without any fixed infrastructures, allow mobile terminals to setup a temporary network for instant communication. Hence, MANETs promise to have many applications including disaster management, emergency relief, mobile conferencing, battle field communication, and so on. Clustering is an important approach in ad hoc networks for achieving scalability, ease of routing, basic performance guarantee such as throughput and delay, in the presence of large number of mobile nodes and high mobility. Connectivity among cluster heads is required for most applications such as message broadcasting, data communication, routing synchronization in distributed computing environment among many others. A number of 1-hop clustering protocols have been proposed, essentially based on the notion of Connected Dominating Set (CDS) for better connectivity. Conventional 1-hop clustering algorithms assume an existing MANET having some nodes and implement their algorithms on that network. Unlike those algorithms, we propose a new 1-hop clustering algorithm which forms the clusters at boot time of each node without any assumption of a MANET existing or already working. Our algorithm focuses on load balanced clusters and minimizing message exchanges in cluster formation. We tested our proposed scheme using ns 2.29 simulator.","PeriodicalId":338962,"journal":{"name":"2008 Fourth International Conference on Wireless Communication and Sensor Networks","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121012716","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: 2