Low-Latency Video Streaming With Congestion Control in Mobile Ad-Hoc Networks

Abstract

Abstract-In this paper, we address the challenge of delivering a video stream, encoded with multiple descriptions, in a mobile ad-hoc environment with low-latency constraints. This kind of application is meant to provide an efficient and reliable video communication tool in scenarios where the deployment of an infrastructure is not feasible, such as military and disaster relief applications. First, we present a recently proposed protocol that employs a reliable form of one-hop broadcast to build an efficient overlay network according to a multi-objective function that minimises the number of packets injected in the network and to maximises the path diversity among descriptions. Then, we introduce the main contribution of this article: a cross-layer congestion control strategy where the MAC layer is video-coding aware and adjusts its transmission parameters (namely, the RTS retry limit) via congestion/distortion optimisation. The main challenge in this approach is providing a reliable estimation of congestion and distortion, given the limited information available at each node. Our simulations show that, if a stringent constraint of low delay is imposed, our technique grants a consistent gain in terms both of both PSNR and delay reduction, for bitrates up to a few megabits per second.

Rate-distortion-optimized multi-view streaming in wireless environment using network coding

“…Notice that, even though the proposed method could be applied to any preference model, how the learning and keeping track of the preference distribution is performed is outside the scope of this article and shall not be addressed in the following. However, these preferences may be easily learned and spread over the network with approaches similar to those shown in [17].…”

“…Recently, good results have been achieved, in the context of mobile video streaming, by exploiting the broadcast nature of the medium through the construction of video packet delivery overlays [16,17]. These logical networks, built on top of the actual wireless network through the cooperation of nodes, allow to provide a streaming service with good video quality and graceful degradation.…”

MIMC: Middleware for Identifying & Mitigating Congestion Level in Hybrid Mobile Adhoc Network

“…The study outcome was evaluated to posses better throughput and delay performance. Greco et al [15] has presented a technique to overcome the problem of latency considering the case study of multimedia streaming over the mobile ad-hoc network. The technique uses a cross layer-based approach where coding of multimedia is carried over MAC layer followed by optimization over the state of congestion in the mobile ad-hoc network.…”

Cross Layer based Congestion Control Scheme for Mobile Ad hoc Networks

“…In [21], the congestion control is achieved through the low rate video streaming. The basic purpose and aim of the work is to provide congestion avoidance for multi tree overlays in the MANET.…”