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- Distance-Based Distributed Multihop Localization in Mobile Wireless Sensor Networks
- Localization in wireless sensor networks has been a big challenge for researchers in the past years. Besides physical problems like estimating the distance between two nodes, applicable algorithms are still on the list of open research issues. While single-hop localization with direct connection to fixed anchors is well researched, the...
- White papers 2009-09-22
- Performance Comparison of Multihop Wireless Mobile Ad-Hoc Routing Protocols
- As of date, wireless communication is one of the most demanding areas of research within networking, with many proposed, but unverified protocols. The success of the proposed protocols depends on the availability of robust implementations that enable both real-time test beds and non-real time simulations. Wireless ad-hoc network is a...
- White papers 2009-08-24
- On Centralized Scheduling and Channel Assignment Scheme for WiMAX Mesh Networks
- WiMAX provides a mechanism for creating Multihop mesh, which can be deployed as high speed wide-area wireless network. Because multiple-access interference is a major limiting factor for the WiMAX mesh network, Multi-channel transmission can eliminate the interference and improve the throughput of the network. The efficiency of Multi-channel transmission can...
- White papers 2009-08-04
- IP Links in Multihop Ad Hoc Wireless Networks?
- A number of efforts currently aim at scalable and efficient mobile ad hoc routing, an essential piece concerning the integration of such networks in the Internet. However, there is another independent and important issue, namely, how can existing Internet networks and ad hoc networks coexist coherently within the same protocol...
- White papers 2009-07-06
- Hybrid WiFi-WiMAX Network Routing Protocol
- The proliferation of Wireless Local Area Networks WLANs facilitates the development of multihop routing protocols. Moreover, the need to cover greater areas has led to the creation of new standards for Wireless Metropolitan Area Networks WMANs. This paper proposes a new routing protocol that integrates WLANs and WMANs, allowing seamless...
- White papers 2009-02-10
- SafeMesh: A Wireless Mesh Network Routing Protocol for Incident Area Communications
- Reliable broadband communication is becoming increasingly important during disaster recovery and emergency response operations. In situations where infrastructure-based communication is not available or has been disrupted, an Incident Area Network needs to be dynamically deployed, i.e. a temporary network that provides communication services for efficient crisis management at an incident...
- White papers 2008-12-11
- Path Selection for Mobile Stations in IEEE 802.16 Multihop Relay Networks
- Multimedia applications over wireless mobile networks become more popular with the increasing deployment of wireless infrastructures. IEEE 802.16 standard has become an emerging technology to support broadband access and Quality of Service QoS for real-time multimedia applications over wireless networks. This paper discusses the path selection problem in IEEE 802.16...
- White papers 2008-08-06
- Scheduling in Multihop WiMAX Networks
- IEEE 802.16, popularly known as WiMAX, is at the forefront of the technology drive because of the growing demand for high-speed wireless broadband networks. Multihop WiMAX networks are particularly useful as they increase the coverage area without the need to deploy expensive base stations. There are two kinds of multihop...
- White papers 2008-07-31
- Wi-MuMe: WiMAX MuLTIHOP MeSH - A Relay Based Approach to Deliver Broadband to Rural Communities
- Multi-hop relay based WiMAX is one of the proposed solutions to address the problem of capacity and coverage expansion in the developing and under-developed regions of the world. Compared with the Point to Multi-Point PMP based communication; the mesh mode of WiMAX can provide better coverage, bandwidth, flexibility and scalability....
- White papers 2008-07-14
- Performance Evaluation of Video Streaming in Multihop Wireless Mesh Networks
- Supporting multimedia services in wireless mesh networks is receiving more attention from the research community. While wired networks have mature infrastructure and protocols providing QoS for multimedia, supporting multimedia in multihop wireless mesh networks faces greater technical challenges. The unreliable nature and shared media of multihop communications make the deployment...
- White papers 2008-01-01
- RAIN: A Reliable Wireless Network Architecture
- Despite years of research and development, pioneering deployments of multihop wireless networks have not proven successful. The performance of routing and transport is often unstable due to contention-induced packet losses, especially when the network is large and the offered load is high. This paper proposes RAIN, a reliable wireless network...
- White papers 2008-01-01
- Common Gateway Architecture for Mobile Ad-Hoc Networks
- Ad-hoc networks are by definition created on demand, without any infrastructure. On the other hand, they are often considered as an extension of the range of Internet access points, providing multihop wireless access to them. This paper tries to examine the situation where there exist several Internet access points in...
- White papers 2008-01-01
- Multihop Clustering Algorithm for Load Balancing in Wireless Sensor Networks.
- The paper presents a new cluster based routing algorithm that exploits the redundancy properties of the sensor networks in order to address the traditional problem of load balancing and energy efficiency in the WSNs. The algorithm makes use of the nodes in a sensor network of which area coverage is...
- White papers 2007-08-22
- Load Balancing by Distributed Optimisation in Ad Hoc Networks
- This paper approaches the problem of load balancing for wireless multihop networks by distributed optimisation. As an example of a distributed optimisation algorithm for ad hoc networks, an approximation algorithm is used for minimising the maximum network congestion and implements it as a modification of the DSR routing protocol. The...
- White papers 2007-07-10
- The Multicast Capacity of Large Multihop Wireless Networks
- This paper considers wireless ad hoc networks with a large number of users. Subsets of users might be interested in identical information, and so the authors have a regime in which several multicast sessions may coexist. The paper first calculates an upper-bound on the achievable transmission rate per multicast flow...
- White papers 2007-06-13
- LITEWORP: Detection and Isolation of the Wormhole Attack in Static Multihop Wireless Networks
- In multihop wireless systems, such as ad-hoc and sensor networks, the need for cooperation among nodes to relay each other's packets exposes them to a wide range of security attacks. A particularly devastating attack is known as the wormhole attack, where a malicious node records control and data traffic at...
- White papers 2007-06-12
- Balancing Throughput and Fairness for TCP Flows in Multihop Ad-Hoc Networks
- Analyzing transport layer operation and enhancing its performance over multihop ad hoc networks have attracted a lot of attentions. Although the fundamental reasons for the performance degradation of TCP have been studied for many years, the tight coupling between transport layer and the wireless MAC layer is still not well...
- White papers 2007-02-23
- A Simple and Effective End-to-End Approach to Increase TCP Throughput Over Ad-Hoc Networks
- This paper studies the behavior of TCP protocol over multihop ad-hoc networks. TCP is a reliable transport protocol that at first was conceived for wired networks. The congestion control mechanism of TCP is designed for wired environments and is not adapted with wireless networks such as multihop ad-hoc networks which...
- White papers 2007-01-01
- Interference-Aware Load Balancing for Multihop Wireless Networks
- Load balancing is critical for improving performance in wireless mesh networks. The unique characteristics of mesh networks, such as static nodes and the shared nature of the wireless medium, invalidate existing solutions from both wired and wireless networks and introduce new challenges for providing load balancing. This paper focuses on...
- White papers 2006-09-25
- A Smart TCP Acknowledgment Approach for Multihop Wireless Networks
- Reliable data transfer is one of the most difficult tasks to be accomplished in multihop wireless networks. Traditional transport protocols like TCP face severe performance degradation over multihop networks given the noisy nature of wireless media as well as unstable connectivity conditions in place. The success of TCP in wired...
- White papers 2006-08-14
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