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Wireless Communication and Sensor Networks, 2007. WCSN '07. Third International Conference on

Date 13-15 Dec. 2007

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  • [Title page]

    Publication Year: 2007, Page(s):C1 - C2
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  • [Breaker page]

    Publication Year: 2007, Page(s): 1
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  • Preface

    Publication Year: 2007, Page(s):1 - 2
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  • Contributor listings

    Publication Year: 2007, Page(s): 1
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  • Contributor listings

    Publication Year: 2007, Page(s):1 - 2
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  • Reviewer and referee listings

    Publication Year: 2007, Page(s): 1
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  • [Advertisements]

    Publication Year: 2007, Page(s): 1
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  • Table of contents

    Publication Year: 2007, Page(s):1 - 3
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  • Effects of Soft Handover Margin under various Radio propagation parameters in CDMA Cellular Networks

    Publication Year: 2007, Page(s):1 - 4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2244 KB) | HTML iconHTML

    CDMA based cellular networks support soft handover, which makes smooth transition and enhanced communication quality. It is designer's challenge to optimize handover parameters under varied propagation environmental conditions. In this paper, we have investigated the effect of soft handover margin and characteristic parameters of the radio propagation environment on the soft handover performance. ... View full abstract»

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  • Modified MAC for Multimedia Wireless LAN Architecture

    Publication Year: 2007, Page(s):5 - 8
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (369 KB) | HTML iconHTML

    IEEE 802.11 has gained popularity at an unprecedented rate as a simple and cost effective wireless technology for best-effort service. However, it lacks of the capability to support Quality of Services such as multimedia and real-time traffic properly. This paper presents a simple approach to enhance the multimedia real-time performance over the 802.11 WLAN by implementing a quality of service man... View full abstract»

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  • Analysis of Raised Cosine Filtering in Communication Systems

    Publication Year: 2007, Page(s):9 - 12
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2611 KB) | HTML iconHTML

    In this era of wireless communication systems inter symbol interference (ISI) is a major issue. In this paper the inter symbol interference rejection capability of a raised cosine filter (RCF) is analyzed. Simulation is done for analyzing the importance of rolloff factor and its selection in a raised cosine filter for evaluating the desired response. Communication toolbox in CAD tool MATLAB is bei... View full abstract»

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  • Bounds on Dynamic Modulation Scaling for Wireless Sensor Networks

    Publication Year: 2007, Page(s):13 - 16
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3693 KB) | HTML iconHTML

    Wireless communication is the most energy expensive operation for energy constrained wireless sensor networks. Dynamic modulation scaling (DMS) is a technique useful for optimizing transmission energy with respect to number of packets that need to be transmitted at that particular time intervals. In general, DMS trades off transmission energy against transmission delays. Multilevel (M-ary) modulat... View full abstract»

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  • Design and analysis of a 1.2V, 2.4 GHz Low Power ASK Transmitter for Wireless Micro Sensor Nodes

    Publication Year: 2007, Page(s):17 - 20
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1616 KB) | HTML iconHTML

    A 1.2 V, 2.4 GHz ASK transmitter for low-rate WPAN is designed and implemented. The transmitter topology is based on a PLL based direct modulation scheme. Emphasis was placed on observing device reliability constraints such as leakage current, switching current, supply voltage and the operating frequency at low power to maximize the life time of the wireless sensor nodes. Optimizations of architec... View full abstract»

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  • QR-RLS based Adaptive channel shortening IIR-TEQ for OFDM Wireless LAN

    Publication Year: 2007, Page(s):21 - 26
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3579 KB) | HTML iconHTML

    In this paper, QR-RLS based IIR adaptive channel TEQ(time domain equalizer) to make the OFDM systems robust for delay spreads exceeding the CP(cyclic prefix) is presented. IIR based TEQ results in much shorter length equalizer compared to FIR based TEQ, at the same time guarantee for global convergence within the training period. The length of zeros of the proposed QR-IIR TEQ is restricted to CP. ... View full abstract»

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  • SBIL: Scalable Indoor Localization and Navigation Service

    Publication Year: 2007, Page(s):27 - 30
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3106 KB) | HTML iconHTML

    Several approaches have been proposed for localization and navigation based on WLAN, ZigBee, RFID and UWB over a decade. However, these systems are either expensive or lack accuracy and not all technologies are available in smartphones. Here we describe a Scalable Indoor location based service (SBI) a cost-effective solution based on Bluetooth. Using an appropriate filtering algorithm, we explored... View full abstract»

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  • MEECA: MiSense Energy Efficient Clustering Algorithm

    Publication Year: 2007, Page(s):31 - 35
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2815 KB) | HTML iconHTML

    Wireless sensor network is among the fastest growing technologies that have the potential of changing our lives drastically. Energy efficiency is a key design objective in most of the research related to wireless sensor networks because the nodes are severely energy constrained, and battery replenishment is often not practical. Therefore, prolonged network lifetime, scalability, and load balancing... View full abstract»

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  • Fault Tolerant Local Delaunay Triangulation for Ad hoc Sensor Networks

    Publication Year: 2007, Page(s):36 - 40
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2400 KB) | HTML iconHTML

    Local Delaunay triangulation (LDel) is a geometric spanner used for efficient communication in ad hoc routing. The LDel performance is degraded in resource constrained sensor networks, because the network contains frequent node failures due to the low battery power. The geometric properties of the spanner LDel are lost when a nodes failure occurs in the network. In addition, if a failed node exist... View full abstract»

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  • Network Selection in Heterogeneous Wireless Environment: A Ranking Algorithm

    Publication Year: 2007, Page(s):41 - 44
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4489 KB) | HTML iconHTML

    Vertical handoff decision algorithms facilitate the terminal to be connected to the network which suffice the requirements of the application. It ushers the terminal to be connected to the most optimum network amongst those in the purview of the mobile terminal. The selection criterion involves multiple attributes. Although many ranking algorithms have been proposed, there is a need to lay a stres... View full abstract»

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  • Random Walk on Random Graph based Outlier Detection in Wireless Sensor Networks

    Publication Year: 2007, Page(s):45 - 49
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1601 KB) | HTML iconHTML

    Wireless Sensor Network (WSN) is characterized with limited battery power and limited computation capability. Sensor nodes which produce a data set that is different from their counter parts are called Outlier nodes. For example, in a particular room, if we expect temperature of 25degC and if we receive a temperature reading of 73degC. This is called outlier data and the node which produces this d... View full abstract»

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  • Querying Video Sensor Networks

    Publication Year: 2007, Page(s):50 - 54
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4388 KB) | HTML iconHTML

    A wireless sensor network is a resource constrained network with scarcity of computational capacity, memory, bandwidth and energy. The problem is further accentuated in multimedia wireless sensor networks. Raw video cannot be transferred over a wireless channel. Video compression is computationally intensive and even compressed video requires large amount of bandwidth for transfer. This entails th... View full abstract»

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  • Lifetime Enhancement in Wireless Sensor Networks through Selective Data Handover

    Publication Year: 2007, Page(s):55 - 60
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (775 KB) | HTML iconHTML

    Wireless sensor nodes, being highly energy constrained, must function in an energy-efficient manner in order to enhance network lifetime. Thus suitable protocols must be defined in order to minimize the energy dissipated by the individual nodes in the network. The LEACH and PEGASIS protocols are elegant solutions to the problem. While the LEACH protocol randomizes cluster heads for equal energy di... View full abstract»

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  • Improved System Components for Secure Data Communication in MANETs using Secured DSR

    Publication Year: 2007, Page(s):61 - 64
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB) | HTML iconHTML

    Efficient and improved methods of secured route discovery and secured data transmission in Mobile Ad-hoc Networks (MANET) are most recent research issues for ensuring full applicability of deploying MANETs in wide range of applications, including strategic as well as non-strategic. Secured route discovery has been addressed by SRP/SMT, as a generic protocol independent technique for secured route ... View full abstract»

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  • Probabilistic Average Energy Flooding to Maximize Lifetime of Mobile Ad Hoc Networks

    Publication Year: 2007, Page(s):65 - 68
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (418 KB) | HTML iconHTML

    Wireless mobile ad hoc stations have limited battery capacity, hence, ad hoc routing protocols ought to be energy conservative. Route discovery is a common operation in routing to resolve many issues. In a mobile ad hoc network (MANET) in particular, due to host mobility, such operations are expected to be executed more frequently. A straightforward broadcasting by flooding is usually very costly ... View full abstract»

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  • Mobility Adaptive Cross Layer Design for Reliable Route Discovery in Ad-hoc Networks

    Publication Year: 2007, Page(s):69 - 73
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2250 KB) | HTML iconHTML

    Recently mobile ad-hoc networks (MANET) have found widespread applications. In this infrastructure-less networks the routes have to be refreshed often due to mobility of nodes which also acting as routers. Many ad-hoc routing protocols have been proposed, of which on-demand routing protocols are very popular. To meet the scarce of network resources, the need of the time is to develop a protocol wh... View full abstract»

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  • SPEAR: Sensor Protocol for Energy Aware Routing in Wireless Sensor Network

    Publication Year: 2007, Page(s):74 - 78
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3986 KB) | HTML iconHTML

    Classical clustering schemes such as LEACH (low energy adaptive clustering hierarchy), involve certain randomness in cluster head (CH) election which does not take into account the energy distribution of the nodes. This leads to an unstable steady state in heterogeneous conditions. In this paper, we propose a hierarchical clustering protocol, SPEAR (sensor protocol for energy aware routing), that ... View full abstract»

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