Multi-radio multi-channel multi-hop wireless networks recently have drawn considerable research attention. A number of results have been presented on joint optimization of routing, link scheduling, and channel assignment in such networks. Although dynamic channel switching has some benefits, it also poses a number of challenges in managing the network protocols and causes delay in switching cha...

Scheduling policies in multi-queue multi-server systems need to allocate servers based on the channel state information and the queue state information. In the downlink, channel state information available to the scheduler may be imperfect due to feedback delay and estimation errors. Motivated by this, we consider the downlink scheduling problem of allocating servers to multi-queue multi-server...

Multi-channel systems appear in several fields of application in science. In the Synthetic Aperture Radar (SAR) context, multi-channel systems may refer to different domains, as multi-polarization, multi-interferometric or multi-temporal data, or even a combination of them. Due to the inherent speckle phenomenon present in SAR images, the statistical description of the data is almost mandatory ...

In this paper, we obtain the optimal number of interfaces/channels in wireless mesh networks by simulation. The simulation study is done in static multi-channel multi-interface environment. When many nodes use a single interface/channel, collisions of RTS/CTS result in network performance degradation. To avoid such degradation and reduce interference among adjacent nodes, use of multi-interface...

Most Mobile Ad hoc Networks (MANETs) research is based on a single channel. Nonetheless, multi-channel is an approach that can increase network capacity by transmitting traffic on different channels in an interference area. Channel assignment and channel switching, however, are two main challenges when the common communication channel is no longer available using the multi-channel scheme. We pr...

Because of the coexistence of multiplex tactical data links (TDLs) it is urgent to study the cooperation of Multi-Net-Multi-Link (MNML) TDL. This paper proposes a Multi-Channel-Multi-MAC (MCMM) model architecture to support MNML TDL simulation. The MCMM model adds several copies of data link layer, network interface and channel which are capable to cover the configurations of multi-channel and ...

CHANNEL ASSIGNMENT AND ROUTING FOR MULTI-RADIO WIRELESS MESH NETWORKS Ahmet Murat Özdemiray M.S. in Computer Engineering Supervisor: Assist. Prof. Dr. İbrahim Körpeoğlu September, 2008 Wireless Mesh Network is a promising technology since it extends the range of wireless coverage by multi-hop transmission between routers. However, in multihop networks the total throughput decreases with increas...