The Medium Time Metric: High Throughput Route Selection in Multi-rate Ad Hoc Wireless Networks

Awerbuch, Baruch; Holmer, David; Rubens, Herbert

doi:10.1007/s11036-005-4477-x

Cited by 110 publications

(105 citation statements)

References 20 publications

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“…in Table IV equal to 1. In this case, given the distance d i,j , n and P T , we calculate the received power P R(i,j) of a link by isolating P R variable of Equation (6). Then, we choose for each channel width w , the transmission mode m n that has minimum sensitivity (Table IV) immediately below the received power P R(i,j) .…”

Section: B Impacts On Signal Rangementioning

confidence: 99%

“…This work defines and evaluates through simulation a routing metric for multiple radio and multiple channel wireless mesh networks, where the channels can assume different widths according to a proposed algorithm. The simulation results show that the routing metric coupled with the channel width selection algorithm ensure greater throughputs when compared to Minimum Number of Hops (MNH) and Medium Time Metric (MTM) [6] metrics.…”

Section: Introductionmentioning

confidence: 99%

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Routing in IEEE 802.11 wireless mesh networks with channel width adaptation

Carvalho

Rezende

2010

2010 the 9th IFIP Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net)

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Abstract-Selecting routes of higher throughput in wireless mesh networks plays an important hole and has been considered in several works. Previous studies establish routing metrics that do not consider the possibility of using new technologies such as Software Defined Radio (SDR) that allows transmission channels of different widths. In wireless mesh networks equipped with routers that apply this technology, it is possible to improve the network capacity by transmitting multiple parallel flows in narrower channels. Another improvement related to the use of such approach is the reduction in the number of hops of an endto-end communication. In this work, we employ these possibilities to develop a simulation model for wireless mesh networks that are capable to perform channel width adaptation. Additionally, we extend the traditional Medium Time Metric (MTM), propose the B-MTM (Burst per MTM) metric and an algorithm that jointly select routes with higher throughput in wireless mesh networks.

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Section: B Impacts On Signal Rangementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Routing in IEEE 802.11 wireless mesh networks with channel width adaptation

Carvalho

Rezende

2010

2010 the 9th IFIP Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net)

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“…Based on the experience with previous systems, caution should be exercised when switching to an adversarial environment, especially for systems designed to optimize performance. For example, high-throughput routing metrics [10,5,3,33,16] can significantly improve throughput compared to the traditional hop-count metric. However, in the presence of attackers, a high-throughput metric favors aggressive path selection and acts as an attack amplifier, allowing the attacker to completely control and disrupt the traffic for a large number of flows in the network [13].…”

Section: Security Goalsmentioning

confidence: 99%

Secure network coding for wireless mesh networks: Threats, challenges, and directions

Dong

Curtmola

Nita-Rotaru

2009

Computer Communications

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In recent years, network coding has emerged as a new communication paradigm that can significantly improve the efficiency of network protocols by requiring intermediate nodes to mix packets before forwarding them. Recently, several real-world systems have been proposed to leverage network coding in wireless networks. Although the theoretical foundations of network coding are well understood, a real-world system needs to solve a plethora of practical aspects before network coding can meet its promised potential. These practical design choices expose network coding systems to a wide range of attacks.We identify two general frameworks (inter-flow and intra-flow) that encompass several network coding-based systems proposed in wireless networks. Our systematic analysis of the components of these frameworks reveals vulnerabilities to a wide range of attacks, which may severely degrade system performance. Then, we identify security goals and design challenges in achieving security for network coding systems. Adequate understanding of both the threats and challenges is essential to effectively design secure practical network coding systems. Our paper should be viewed as a cautionary note pointing out the frailty of current network coding-based wireless systems and a general guideline in the effort of achieving security for network coding systems.

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“…Various methods can be utilized to combat the effects of gray zone [26]. In this paper, we propose an enhanced CRP protocol (E-CRP) by using a threshold-based approach to mitigate the gray zone effect.…”

Section: Enhanced Crpmentioning

confidence: 99%

Cooperative Protocols Design for Wireless Ad-hoc Networks with Multi-hop Routing

Lin¹,

Song²,

Wong³

2008

Proceedings of the Fifth International ICST Conference on Heterogeneous Networking for Quality Reliability Security and Robustn

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Wireless ad-hoc networks can experience significant performance degradation under fading channels. Diversity through space has been shown to be an effective way of combating wireless fading with the multiple-input-multiple-output (MIMO) technique by transmitting correlated information through multiple antennas. The virtual MIMO technique, which allows multiple wireless stations with single antenna to form a virtual transmission array, is shown to be a viable solution from several recent studies. In this paper, we propose a complete system framework for wireless ad-hoc networks utilizing two different cooperative relaying techniques at the physical layer: the repetition coding and the space-time coding. In the data link layer, two medium access control protocols are proposed to accommodate the corresponding physical layer cooperative diversity schemes. In the network layer, diversity-aware routing protocols are proposed to determine the routing path and the relaying topology. Simulations results show significant performance gains of the proposed cooperative relaying schemes.

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The Medium Time Metric: High Throughput Route Selection in Multi-rate Ad Hoc Wireless Networks

Cited by 110 publications

References 20 publications

Routing in IEEE 802.11 wireless mesh networks with channel width adaptation

Routing in IEEE 802.11 wireless mesh networks with channel width adaptation

Secure network coding for wireless mesh networks: Threats, challenges, and directions

Cooperative Protocols Design for Wireless Ad-hoc Networks with Multi-hop Routing

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