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Rajesh, R.
- A Delay Aware Tree Based Technique in Wireless Sensor Network
Authors
1 Manonmanium Sundaranar University, Tirunelveli, TamilNadu, IN
Source
Networking and Communication Engineering, Vol 2, No 6 (2010), Pagination:Abstract
Wireless sensor networks utilize large numbers of wireless sensor nodes to collect information from their sensing range. Wireless sensor nodes are battery-powered devices. Energy saving is always crucial to the lifetime of a wireless sensor network. Many algorithms are proposed to tackle the energy saving problem in wireless sensor networks. Data collection efficiency is usually compromised in return for gaining longer network lifetime. There are strong needs to develop wireless sensor networks algorithms with optimization priorities biased to aspects besides energy saving. In this work, a delay-aware data collection network structure for wireless sensor networks is carried out. The objective of the network structure is to minimize delays in the data collection processes of wireless sensor networks. The tree structure is efficient in data collection because it reduces the number of links in the network. Performances of the proposed network structure are evaluated using computer simulations and compared with general multiple unicast technique. Simulation results show that, when comparing with other common network structures in wireless sensor networks, the proposed network structure is able to shorten the delays in the data collection process significantly.
Keywords
Wireless Sensor Networks, Data Collection.
- Implementation of WAP Gateway Technologies through Wireless Communication
Authors
1 Anna University, Chennai, IN
2 VIT University, Vellore, IN
Source
Networking and Communication Engineering, Vol 1, No 3 (2009), Pagination: 115-118Abstract
The Wireless Application Protocol (WAP) is an emerging standard for the deployment of data oriented applications in wireless environments. Although some components of the WAP suite have been developed, it lacks a complete general architecture integrating all the protocols, software components of both the Internet and wireless contexts in a transparent way. The protocol stack consists of miniaturized versions of UDP, TCP, SLP and HTTP protocols with reduced header sizes and complexity to make the protocols usable in wireless sensor networks. This paper presents a general architectural framework to develop and deploy portable applications and services accessible by WAP compliant mobile terminals, extending end-to-end services between terminal and business applications.