Load repartition for congestion control in multimedia wireless sensor networks with multipath routing

Abstract

International audienceWireless sensor networks hold a great potential in the deployment of several applications of a paramount importance in our daily life. Video sensors are able to improve a number of these applications where new approaches adapted to both wireless sensor networks and video transport specific characteristics are required. The aim of this work is to provide the necessary bandwidth and to alleviate the congestion problem to video streaming. In this paper, we investigate various load repartition strategies for congestion control mechanism on top of a multipath routing feature. Simulations are performed in order to get insight into the performances of our proposals

A Survey of Visual Sensor Networks

“…Wireless networking Signal processing Middleware [72], [73], [74] Camera calibration: [18], [19], [21] Vision processing: * Object detection [22], [23] * Object tracking [25], [26], [27], [28], [29] * Advanced signal processing [30], [31] Sensor management [25], [29], [52], [53], [54], [55], [56] [32], [33], [38] Energy consumption: [60], [62], [64] Visual sensor node platformas: [5], [58], [66], [67] VSN architectures: [59], [68], [70] Hardware architectures Application * Reliability [35], [36], [37] * Delay sensitive communication [39], [40], [41], [42], [43], [44], [45], [46], [47] * Collaborative routing [49], [50] algorithms should explore how the o...…”

“…As a way to control data congestion in wireless multimedia networks, Maimour et al [33] explore several strategies for load repartition on multiple source-sink paths. They compare simple strategies that uniformly distribute the traffic from the data source on all available paths with more complex strategies that use explicit notifications from the congested nodes in order to balance traffic on available paths, while keeping the sending rate unchanged.…”

Fuzzy-based congestion control for wireless multimedia sensor networks

“…InterferenceMinimized Multipath Routing (I2MR) [19] detects congestion by monitoring the size of data transmit buffer using exponential weighted moving averages. In [20], the occurrence of a congestion is decided when the queue occupancy is greater than a given threshold or when the collision rate is above a given threshold.…”

“…In I2MR, if an intermediate node detects congestion, it removes all pending packets from its own data transmit buffer and then sends a congestion notification packet, which is relayed reliably by all the upstream nodes along the path, to inform the source explicitly. In [20], congestion is notified explicitly. When the congestion has occurred, a congestion notification message, which contains the node id and path id, is sent back to the sources for each path id known by the node.…”

“…Adapting the data transmission rate, which is performed by CODA, Fusion, CCF and I2MR is the most commonly used method for mitigating congestion. In [20], as the congestion notification message is arrived, the non-congested links are marked with the inUse flag. Then the traffic is repartitioned to the non-congested link to prevent congestion and provide fairness.…”