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Venkata Subramanian, J.
- Energy Efficient Opportunistic Routing in Wireless Sensor Networks
Abstract Views :160 |
PDF Views:2
Authors
Affiliations
1 Bharathidasan University, Tiruchi, IN
2 SRM University, IN
1 Bharathidasan University, Tiruchi, IN
2 SRM University, IN
Source
Wireless Communication, Vol 4, No 7 (2012), Pagination: 359-370Abstract
The opportunistic routing has been shown to improve the network throughput, by allowing nodes that overhear the transmission and closer to the destination to participate in forwarding the packet, i.e., in forwarder list. In wireless networks, various factors, like fading, interference, and multi-path effects, can lead to temporary heavy packet losses in a pre-selected path The nodes in forwarder list are prioritized and the lower priority forwarder will discard the packet if the packet has been forwarded by a higher priority forwarder. One challenging problem is to select and prioritize forwarder list such that a certain network performance is optimized. The main focus is on selecting and prioritizing forwarder list to minimize energy consumptions by all nodes. The study of both cases where the transmission power of each node is fixed or dynamically adjustable. I present an energy efficient opportunistic routing strategy, denoted as EEOR. Here extensive simulations in TOSSIM show that the new implemented protocol EEOR performs better than the well-known ExOR protocol (when adapted in sensor networks) in terms of the energy consumption, the packet loss ratio, the average delivery delay- Self-Reconfigurable Wireless Mesh Network
Abstract Views :158 |
PDF Views:2
Authors
Affiliations
1 Dept. of MCA, SRM University, Chennai, IN
1 Dept. of MCA, SRM University, Chennai, IN
Source
Wireless Communication, Vol 4, No 5 (2012), Pagination: 257-262Abstract
During their lifetime, multihop wireless mesh networks (WMNs) experience frequent link failures caused by channel interference, dynamic obstacles, and/or applications' bandwidth demands. These failures cause severe performance degradation in WMNs or require expensive manual network management for their real-time recovery. This paper presents an autonomous network reconfiguration system (ARS) that enables a multiradio WMN to autonomously recover from local link failures to preserve network performance. By using channel and radio diversities in WMNs, ARS generates necessary changes in local radio and channel assignments in order to recover from failures. Next, based on the thus-generated configuration changes, the system cooperatively reconfigures network settings among local mesh routers. ARS has been implemented and evaluated extensively on our IEEE 802.11-based WMN test-bed as well as through ns2-based simulation. Our evaluation results show that ARS outperforms existing failure-recovery schemes in improving channel-efficiency by more than 90% and in the ability of meeting the applications' bandwidth demands by an average of 200%.- Intelligent Mobile Home Theft Monitoring System
Abstract Views :139 |
PDF Views:3
Authors
Affiliations
1 SRM University, Chennai, IN
1 SRM University, Chennai, IN
Source
Wireless Communication, Vol 4, No 5 (2012), Pagination: 263-268Abstract
Monitoring system is repeatedly mentioned as one of the main application areas for mobile computing. it is the application of mobile computing technologies for improving communication among moitoring place, home, industrial, organization, in this place using the application .As mobile devices have become part of our like it can integrate more seamlessly to our everyday life. It enables the delivery of mobile video anytime, anywhere by means of mobile devices. it is paper proposed monitoring house by using web camera and we are retrieving content from the web camera to mobile. Here we are using android os mobile .JMF is used for getting the attributes of video and the attributes should be adjustable depends on network speed. A media server is used to fetch that information from web camera, for that we have proposed RTP/RTSP streaming protocol this protocol get the live video from camera to server and server to mobile. By this system we can monitor our house at any time.Keywords
Mobile Computing, RTP, JMF, Android.- Personalized Cloud Storage for E-Mails
Abstract Views :114 |
PDF Views:2
Authors
Affiliations
1 SRM University, Chennai, IN
1 SRM University, Chennai, IN