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In this paper, we propose a method to address the issue of link loss inference in uncertain networks. Although numerous loss inference methods have been proposed in recent years, most of them ignore the unstable states of networks. That is, the performances of real network environments, such as link loss rates and end-to-end routes, are constantly changing. Ignoring these uncertain factors of the...
Cognitive Radio Vehicular Ad Hoc Networks (CRVANETs) can resolve the conflicts between limited spectrum resource and vehicular communication service needs, and thus it receives much concern. Most existing routing solutions for Cognitive Radio Ad Hoc Networks (CRAHNs) or VANETs cannot be directly applied to CR-VANETs due to the high mobility of vehicles and varying availability of spectrums. To fill...
The overlay network has been widely developed in recent years. There may be various overlays that co-exist with each other upon the same underlying network. These overlays have heterogeneous performance goals, and they will compete for the physical resources, so that a sub-optimal performance of the overlays may be achieved. Moreover, the heterogeneity of the overlays makes them difficult to coordinate...
The overlay network has been widely deployed by Service Providers to provide services. Since there are multiple SPs built upon the same ISP, their overlays are co-existing and may interfere with each other. The selfishness of overlay may lead to sub-optimal performance and traffic arrangement dilemma for overlays. To optimize the performances of overlays and maximize the benefit of SPs, we proposed...
The rapid development of IP networks requires high performance routers. The fast routing lookup engine in routers is a key problem to achieve higher throughput. In this paper, we present a new high performance IP lookup scheme combining path-compressed binary trie, hash algorithm and address aging technique. It can meet the search requirements of more than 10Gbps data stream and consumes less hardware...
Overlay networks have been widely developed over the past few years. More and more overlays are deployed on the top of the same native network, and share the same physical resources. Competing for these physical resources, co-existing overlays may affect each other adversely. It has been showed that by using selfish overlay routing, co-existing overlays would be likely to converge to a Nash equilibrium...
Underwater acoustic wireless sensor network (UAWSN) is the result of global popularity of networks which combines underwater acoustic communication, networks, modern signal processing, sensor techniques and so on. Because of the particular characters of UAWSN such as big transportation delay, limited node power supply, many of the mature WSN techniques can't be implanted to UAWSN directly. UW-CSMA/CA...
This paper proposes a fast reconfiguration algorithm for the two-dimensional degradable mesh-connected processor arrays. The proposed algorithm simplifies a dynamic programming approach to construct logical columns. For each processing element lying in the logical columns, the calculation is reduced from five operations (one assignment, two additions and two comparisons) that are taken in the state-of-the-art...
Links in Challenged Networks, particularly in Delay Tolerance Networks, are mostly disconnected due to the mobility, fallibility and scarcity of nodes. Owing to its intermittent connectivity, there exists substantive uncertainty, in which fuzziness and randomness are the most important and fundamental. In this paper, in virtue of the relationship analysis between fuzziness and randomness, we discuss...
The emerging high definition in-home multimedia applications require higher capacity from future wireless networks in the indoor environments. In this paper, we consider a novel mesh-like architecture for indoor wireless networks using 60 GHz radio for supporting multimedia applications with sufficient data rate and stringent quality-of-service (QoS) guarantees. We concentrate on studying the application...
We study the application of multipath routing to enhance reliability of high quality video in 60 GHz radio indoor networks. We propose a cross-layer approach taking into account the possibility of layered-coding for video stream transportation and the characteristics of 60 GHz radio links based on our earlier studies on the stability of 60 GHz radio links. Further three traffic allocation schemes...
In order to reduce the congestion of Ad Hoc network and increase the speed of routing searching, the link-disjoint paths algorithm based on ant colony optimization is proposed in this paper. The new algorithm introduces the intelligence and positive feedback of ant algorithm to link-disjoint paths algorithm to improve the probability of path optimization, sets the age domain of ant to reduce immersion,...
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...
Optimization of multilayer restoration and routing was investigated. Compared to TD, BU has higher restoration probability and much shorter restoration time. EROTRIP was proposed to guarantee high restoration probability for traffic with high priority.
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