Intra-Collision Avoidance with Transmission Power Control in Wireless Ad-Hoc Networks

Abstract

In wireless multihop networks, collisions among wireless transmission signals from the intermediate wireless nodes cause reduction of the end-to-end data message throughput. Hence, avoidance and/or reduction of collisions between 2-hop neighbor intermediate nodes due to the hidden terminal problem is required. For the disk model wireless transmissions, RH2SWL is one of efficient the solutions. However, in a wide-area wireless multihop network where a wireless multihop trans- mission route tends to be longer, the route detection ratio tends to be lower since it becomes difficult for each intermediate wireless node to detect its next-hop node. In order to solve this problem, this paper proposes a novel routing method for a wide- area wireless multihop networks based on the SIR model. The proposed routing method configures a wireless multihop transmission route where each intermediate wireless node receives wireless signal from its previous-hop intermediate wireless node without collisions with that from its next-hop wireless node. The proposed routing method improves the route detection ratio.