Optimal Energy Calculation for Cooperative Grid Networks

Abstract

<span style="mso-ansi-language:EN-US" lang="EN-US">The Lifetime of Mobile Ad Hoc Network (MANET) depends on the battery capacity of nodes. IEEE 802.11 supports power saving mode (PSM) in which the station may be kept in awake mode or in a doze state. PSM is energy efficient, which improves the network lifetime and is suitable for MANETs. Node deployment in a network plays a vital role in its topology, routing and network lifetime. Node placement can be categorized into: Deterministic, Semi-deterministic and Non-deterministic types. In grid topology, nodes are placed in a uniform distance and gives better performance over random deployment for MANETs using PSM. Cooperative communication supports higher data rates and provides cooperative diversity. In this paper, the performance of the proposed Cooperative Modified Bellman Ford Algorithm for a grid network with PSM is investigated. In this algorithm, cooperative relays employing Modified Bellman Ford Algorithm (MBFA) are used to improve the performance of the network. The effect of Announcement of a Traffic Indication Message (ATIM) interval on packets received and energy consumption is calculated for different network sizes. Various performance metrics like packets received, energy consumed and delay for cooperative and non-cooperative scenarios are investigated with a different ATIM interval. Simulation results show that an ATIM interval of 16TUs gives better performance and a shorter ATIM interval saves node energy and improves the lifetime of the network.

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