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Wireless Multimedia Sensor Networks(WMSNs) have the characteristics of limited resources, variable channel capacities and high data redundancy, which pose great challenges to the QoS routing of WMSNs. Addressing these issues, an Ant Colony Optimization-based Load Balancing Routing Algorithm (ACOLBR) is proposed. Firstly, the intra-cluster routing is built by the minimum spanning tree. And then the...
This paper studies the joint OFDMA resource allocation and QoS routing problem in a hybrid wireless network, which includes an OFDMA based cellular network and an ad-hoc network with many sensor nodes. In such application, each sensor node generates certain amount of data that need to be sent to cellular base station (BS). The cellular nodes act as gateway to forward all the uplink traffic. We formulate...
Cooperative communications have been demonstrated to be effective in combating the multiple fading effects in wireless networks, and improving the network performance in terms of adaptivity, reliability and network throughput. In this paper, we investigate the use of cooperative communications with adaptive relay selection for resource-constrained wireless sensor networks, and propose QoS-RSCC, a...
This short paper presents practical algorithms for mitigating inefficiency in reliability differentiation service based on geographical stateless routing, which has great potential applications in large scale wireless sensor networks (WSN). Based on available algorithm, the paper presents a mathematical formalization to systematic understanding the multipath redundancy problem of WSN. With the information...
The following topics are dealt with: VLSI; OFDM; embedded systems; filters; MIMO; cellular and integrated systems; media processing; Internet; image processing; network routing; QoS and resource allocation; network management; channel modelling and equalization; ad hoc networks; communication signal processing; WSN; channel estimation; WLAN and WWAN; coding and detection; security; UWB; cognitive...
Existing hierarchical routing algorithms for wireless sensor networks (WSNs) mainly focus on distributing energy load among all nodes. They pay little attention to quality of services (QoS) support in WSNs. In this paper, we developed an algorithm, local-centralized adaptive clustering algorithm (LAC), which concerns not only energy consumption but also the reliability and the steadiness of the wireless...
The following topics are dealt with: flow control; flow analysis; system architecture; network systems; distributed multimedia 3D applications; Internet; pervasive computing; mobile computing; embedded systems; protocols; routing; search; allocation; verification; access control; work flow; P2P; QoS; VOIP; ontologies; data mining; IPv6; ad hoc networks; and sensor networks
The following topics were dealt with: local computer networks; peer-to-peer; QoS; wireless sensor networks; radio networks; storage; distribution; traffic characterisation; network routing; optical networks; services; traffic control; power efficiency; wireless local area networks; network security; ad hoc networks; multicast networks; network management; DiffServ; mobile networks; resource allocation;...
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