Increased Throughput for Load based Channel Aware Routing in MANETs with Reusable Paths

Abstract

The widespread applications of Mobile Ad hoc Networks (MANETs) have lead to the development of many protocols in this field. Routing protocols for ad hoc networks have generally ignored channel fading. This paper proposes a routing protocol which calculates the channels non-fading duration for routing which attempts to minimize packet loss due to fading and also reuse the path with some security mechanisms to increase the throughput. Specifically, in the proposed work the faded paths can be reused when they become available again, rather than being discarded, also the loads are balanced on the link. The Channel Aware -Ad hoc On-demand Multipath Distance Vector (CA-AOMDV) used for channel average non-fading duration as the routing metric. The Load Based Channel Aware -Ad hoc On-demand Multipath Distance Vector (LBCA-AOMDV) is used for increasing throughput and packet delivery ratio. The NS-2 is used to perform both the simulation and evaluation of the performance of proposed protocol and to compare it with existing protocols. The simulation result demonstrates improvement in the throughput, packet delivery ratio, security and reduction of packet loss on routing.

Systematic Assessment of Path Extent Time in Mobile Ad Hoc Networks

“…The dashed lines in Figure 1 indicate the mid-speed roads and the double lines represent streets traveled by the MNs in our example. As shown, both moves from (1, 1) to (5,4) and from (5,4) to (1,4) use mid-speed roads. The City Section Mobility Model provides realistic movements for a section of a city since it severely restricts the traveling behavior of MNs.…”

“…Within this example, the center-most vertical and horizontal streets are designated as mid-speed roads (i.e., x = 3and y = 3), similar to main thoroughfares within a city; all other roads are considered to be slow residential roads. A MNs starts the simulation at (1, 1), moves to (5,4) and then moves to (1,4). The dashed lines in Figure 1 indicate the mid-speed roads and the double lines represent streets traveled by the MNs in our example.…”

“…Whenever a route becomes invalid, a mobile node has to find a new route to the destination. This affects the ongoing communication and increases the overhead (for eg, control traffic) created by the routing protocol [3], [4]. Accurate prediction of path duration (for which a typical route will be valid) will increase the performance of a routing protocol.…”

Scalable and Secure Dynamic Key Management and Channel Aware Routing in Mobile Adhoc Networks

“…Here we fix the threshold values, if any node exist that particular value consider that node will be overloaded and it comes away from the path and not from the channel. The particular load is replaced by some neighboring node [16].…”