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Cooperative communication based on cooperative diversity allows a collection of radio terminals to relay signals for each other in wireless fading channels. In wireless ad hoc networks, nodes communicate with each other using multihop routed transmission and thus hop-by-hop cooperative diversity can be effectively exploited. This paper proposes two cooperation models of per-link cooperation (PLC)...
The booming multimedia applications are demanding multi-hop communications in high data rate millimeter wave radio WPANs (Wireless Personal Area Networks). However, unable to make use of space reuse, the IEEE 802.15.3 dependent piconet scheme shows its limit when the number of inter-connected piconet grows. In this paper, we introduce the concept of a bridging device - the via to setup multi-hop link...
Wireless video sensor networks (WVSNs) bring a new set of design challenges due to their specific application requirements in terms of latency, bit rate, and power consumption. In this paper, we propose an application layer power-congestion-distortion (P-C-D) optimized multi-path transmission scheduling algorithm. The algorithm utilizes existing techniques and protocols on the various layers and is...
Wireless mesh networks will play an important role in the next-generation wireless communication systems as it can provide wide coverage and scalable broadband Internet access services. However, congestion in such networks may lead to throughput degradation, packet loss and longer transmission delay. Therefore, routing and traffic forwarding schemes which are aware of the congestion status of a wireless...
One of the important functions of wireless mesh networks is multi-hop packet forwarding among fixed wireless routers. This paper proposes a multi-hop adaptive forward error correction (MFEC) control scheme implemented in each wireless mesh router present at each hop. The MFEC control scheme provides FEC encoding/decoding capabilities at each mesh router. Our proposed control scheme tunes the FEC redundancy...
Packet disordering and resequencing is a common problem in many real-time applications with stringent timing constraints. A typical scenario is when wireless sensor nodes, interconnected with an ad hoc network, are used to monitor a certain event. In such systems, packets will have to be resequenced before consumption because they were disordered while traversing different paths over the ad hoc network...
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