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In this paper, we propose a Fragmentation-based Multipath Routing (FMR) model for Software Defined Networks (SDNs) to enable attack-resilient data transfer. With the use of erasure encoding to fragment a message, the fragments are routed along multiple paths such that no intermediate node receives enough fragments required for message decoding. This ensures that, any intruder on a compromised node...
Channel variability and a high level of noise lead to a significant probability of packet loss in many underwater networks. Techniques based on packet-level Forward Error Correction (FEC), such as Reed Solomon (RS) codes, can be used to offer effective protection against excessive packet losses that would be generated by noise. In this paper, we propose a new error recovery scheme based on RS codes...
In wireless ad hoc networks, multiple descriptions (MD) coding of video can effectively improve the quality of transmission, but there is a problem that how to choose the optimal path. In order to solve the problem, particle swarm optimization algorithm with adaptive mutation (AMPSO) is presented in this paper, which is used to choose transport path of MD video. This method can find the optimal solution...
This paper proposes a cross-layer approach called routing-aware multiple description coding with multipath transport to support video communications over mobile ad-hoc networks. This approach establishes a packet loss model based on the MAC access mechanism and network parameters, and utilizes it along with the routing messages from multipath routing to estimate the packet loss probability of transmitted...
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...
Scalable video can be used to provide video streaming reliably to an heterogeneous set of receivers with different subscription levels. However, the performance of such schemes can be highly affected by scheduling constraints and unreliable feedback. Network coding, on the other hand, has been shown to reduce scheduling and prioritization problems and to perform well in wireless scenarios with perfect...
It is a challenge that network coding achieve wide use in wireless mesh networks. Network coding must be compatible or friendly with TCP in practice. We propose a mechanism that naturally add network coding to current network systems. In our scheme, the destination feedback the degree of freedom of encoding block, and delays of packet delivery minimize reordering and timeouts. Using multipath routing,...
A Mobile Ad hoc NETwork (MANET) is composed of a set of wireless mobile devices that are able to communicate with each other in a peer-to-peer mode. In recent years video streaming over MANETs has drawn significant attention due to the popularity of high-speed IEEE 802.11 standard series. However, it is still a challenging task for channel variation and bandwidth limitation and fluctuation. In this...
It is a challenge that using multipath transmit packets based on network coding in wireless mesh networks (WMNs). This paper proposes a mechanism that naturally adds network coding to multipath routing network systems. In the mechanism, network coding is compatible with improved multipath TCP (MPTCP). The destination feedback the degree of freedom of encoding block, and delays of packet delivery minimize...
Reliability support in a tactical area network is crucial since critical information is exchanged to achieve military missions. However, it is extremely challenging due to mobility, unstable channel condition, and possible jamming attack from an adversary. To increase reliability, we propose a new software layer, called thin layer, that controls diversity schemes located at various network layers,...
Aggregation of data values plays an important role on distributed computations, in particular over peer-to-peer and sensor networks, as it can provide a summary of some global system property and direct the actions of self-adaptive distributed algorithms. Examples include using estimates of the network size to dimension distributed hash tables or estimates of the average system load to direct load-balancing...
We devise an adaptive fault-tolerant scheme based on the exponentially weighted moving average (EWMA) which can provide fault tolerant in sensor networks and balance between traffic overhead and transmission failure. We use the multipath routing to transmit packets, and according to wireless network environments we adaptively change the required number of paths for transmission. So it can achieve...
We consider wireless mesh networks, and exploit the inherent broadcast nature of wireless by making use of multipath routing. We present an optimization framework that enables us to derive optimal flow control, routing, scheduling, and rate adaptation schemes, where we use network coding to ease the routing problem. We prove optimality and derive a primal-dual algorithm that lays the basis for a practical...
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