The IEEE 802.11 MAC protocol is the standard for wireless LANs; it is widely used in testbeds and simulations for wireless multihop ad hoc networks. However, this protocol was not designed for multihop networks. Although it can support some ad hoc network architecture, it is not intended to support the wireless mobile ad hoc network, in which multihop connectivity is one of the most prominent f...

Network coding technique increases wireless network communication efficiency. Wireless multihop relay network has been shown to achieve capacity gain over conventional single-hop wireless networks. Hybrid wireless relay networks integrate multihop ad hoc relay and infrastructure base stations to achieve better wireless network performance. Applying the promising network coding technique to hybr...

Disastrous events are one of the most challenging applications of multihop ad hoc networks due to possible damages of existing telecommunication infrastructure.The deployed cellular communication infrastructure might be partially or completely destroyed after a natural disaster. Multihop ad hoc communication is an interesting alternative to deal with the lack of communications in disaster scena...

We define and study capacity regions for wireless ad hoc networks with an arbitrary number of nodes and topology. These regions describe the set of achievable rate combinations between all source-destination pairs in the network under various transmission strategies, such as variable-rate transmission, single hop or multihop routing, power control and successive interference cancellation. Multi...

quorum-based power saving (qps) protocols allow “asynchronous” wireless hosts, operating in a multi-hop ad-hoc network, to tune to the low power mode conceived in ieee 802.11 mac standard. qps schemes guarantee that the wake-up schedule for every two neighboring hosts would ultimately overlap within a bounded latency so as to be able to accomplish their reciprocal “unicast” communications. a ma...

Default TCP treats all losses as congestion since it was designed and optimized to work in networks with low noncongestion losses. In this paper first it is shown that the dominant cause of packet drops in multihop ad hoc network is medium access contention and congestion losses, are very rare. Then the most prevalent packet contention drops are analyzed and based on that a modification to both...

Wireless ad hoc networks have numerous real life applications as they can be instantaneously established, require no infrastructure, and are autonomic and selforganizing. Multihop connectivity is the ability of the multiple-hops-away nodes—nodes which are not directly connected—to communicate with each other. Since wireless ad hoc networks are infrastructure-less, the participating nodes themse...

TCP (transmission control protocol) will for sure continue to be the major transport protocol in wireless environments, due to its large install-base in existing applications. Indeed, in future ad hoc wireless networks where devices communicate among each other over multihop routes, TCP is expected to be the prominent protocol for data exchange (e.g., multihop wireless FTP). However, there is a...

In this paper, a multihop routing extension to IEEE 802.11 is presented. Multihop extension preserves the traditional single-hop networks where the service infrastructure is constructed by many access points but it also adds the flexibility of ad hoc networks where wireless transfer through mobile stations is allowed in multiple hop. Multihop extension can reduce the number of required access p...