Interference-aware QoS routing (IQRouting) for ad-hoc networks

Abstract

Abstract-Traditional distributed algorithms for QoS routing in wired networks may not work in the ad-hoc domain, due to interference between links. We propose a heuristic interferenceaware QoS routing algorithm (IQRouting) that chooses candidate paths based on localized information at the source nodes. The candidate paths are compared in a distributed manner using probe packets, with the best path confirmed by the destination node. Simulations demonstrate significant (up to 30%) improvements in admission ratio over traditional shortest path algorithms, and better performance than other QoS routing algorithms in literature as well.

Sufficient rate constraints for QoS flows in ad-hoc networks

“…In [11], we proposed a distributed Ad-hoc Shortest Widest Path (ASWP) routing algorithm, which transforms the well-known Shortest Widest Path paradigm to the ad-hoc domain by taking interference into account. We further proposed IQRouting [12] -a source-based heuristic mechanism that is able to select QoS routed paths in a dynamic manner, using only localized state information. Each of these algorithms relies on the computation of available bandwidth (Sec.…”

Idle Channel Time Estimation in Multi-Hop Wireless Networks

“…But actually it is easier to compute cliques since they are made of closed links and nodes usually have a better knowledge of their neighborhood. So cliques are often preferred in the literature to compute constraints on flows [7], [11].…”

A Survey of QOS Routing Protocols For Mobile Ad Hoc Network

“…The aim of such protocols is typically to foster a better average QoS for all packets according to one or more metrics. QOLSR (QoS Optimized Link State Routing), DSARP (Delay-Sensitive Adaptive Routing Protocol) [29] and IAR (Interference-Aware Routing) [30] are typical independent protocols.…”