Neighbourhood-aware counter-based broadcast scheme for wireless ad hoc networks

Broadcasting is a vital operation in mobile ad hoc networks (MANETs) and it is crucial to enhance its efficiency to ensure successful deployment. Although flooding is ideal for broadcast operations due to its simplicity and high reachability it suffers from high packet collision which can degrade network performance severely. Counter-based broadcast schemes have been introduced to alleviate the limitations of flooding. This study introduces an enhancement to counter-based broadcast by adjusting the threshold value and the Random Assessment Delay (RAD) using minimal neighbourhood information

Dynamic counter-based broadcast in MANETs

The broadcasting protocol can dramatically affect the performance of Mobile Ad Hoc Networks (MANETs). Proper use of a counter-based scheme can reduce the number of rebroadcasts and hence reduce the chance of contention and collision among neighboring nodes. While most previous studies have used a fixed counter-based threshold value irrespective of node/network status, this research presents the Dynamic Counter Based (DCB) broadcasting scheme that utilize one-hop neighborhood information to dynamically estimate more suitable threshold values at a given node. This is done based on locally available information and without requiring any assistance of distance measurements, exact location determination devices or global control mechanism. Our simulation results show that the new dynamic scheme provides good performance levels compared to the existing solutions

Threshold analysis of adjusted counter-based broadcast in MANETs

The broadcasting protocol can dramatically affect the performance of Mobile Ad Hoc Networks (MANETs). Proper use of a counter-based scheme can reduce the number of rebroadcasts and hence reduce the chance of contention and collision among neighbouring nodes. While most previous studies have used a fixed counter-based threshold value irrespective of node/network status, this research argues that one-hop neighbourhood information could be used to dynamically estimate more suitable threshold values of the traditional counter based at a given node. This is done based on locally available information and without requiring any assistance of distance measurements or exact location determination devices. Our simulation results show that the new dynamic scheme provides good performance levels compared to the existing solutions