Ensuring quality of service in ad-hoc wireless networks using the concept of active nodes Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/3j3334849

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  • The problem of ensuring Quality of Service (QoS) on a TCP/IP based fixed-infrastructure network has been well studied and several working proposals exist. An allied problem is that of ensuring QoS on an ad-hoc wireless network, where the requirements are similar, but the operating conditions are different enough to warrant this problem to be dealt with separately and extensively. The QoS reservation and management schemes which work on a fixed infrastructure network perform poorly in ad-hoc wireless networks, mainly because of the difficulty in reserving bandwidth on a contention-based medium, and problems which arise from the possible motion of the hosts and the variability of the quality of the connection. This thesis is a proposal to use the concept of active nodes to set up and maintain QoS. Active nodes are nodes which can execute code on behalf on other remote applications. An algorithm for using active nodes to set up and maintain QoS parameters is proposed, and the use of buffer reservation schemes in reserving bandwidth is explained. The proposal is implemented on the network simulator NS-2, and we study the uses and limitations of this proposal, with specific reference to the performance under different operating conditions.
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-06-28T19:34:09Z (GMT) No. of bitstreams: 1 RajagopalanSantosh2003.pdf: 6762523 bytes, checksum: 26c39b783c22303fb6646af355b0058b (MD5)
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-06-28T19:37:06Z (GMT) No. of bitstreams: 1 RajagopalanSantosh2003.pdf: 6762523 bytes, checksum: 26c39b783c22303fb6646af355b0058b (MD5)
  • description.provenance : Made available in DSpace on 2012-06-28T19:37:06Z (GMT). No. of bitstreams: 1 RajagopalanSantosh2003.pdf: 6762523 bytes, checksum: 26c39b783c22303fb6646af355b0058b (MD5) Previous issue date: 2002-05-16

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