Fig 2 - uploaded by Evgeny Khorov
Content may be subject to copyright.
Source publication
Efficient link management is important for mesh networking. The links opened between neighbor STAs should be stable and ensure high probability of packet delivery. Various approaches of link management are usually compared by simulation. The core contribution of this paper is original link management efficiency criteria and an analytical model of d...
Context in source publication
Context 1
... s,p (n) yields the probability that the STA does not decide to close the link before its neighbour's beacon #(n + 1). To calculate the probability that the link is still open, we need to consider series of beacons of both A and B. Sequences of beacons ({σ A t } and {σ B t }) received by A and B after t 0 are shown in Fig. 2. After STA B sends its beacon #n, the link remains open only if the link was not closed before either by A or by B. By this moment, STA A has also sent n beacons. The probability P A (n) that the open state duration t open exceeds n is P A (n) = φ 2 s,p (n). STA A transmits its beacon #n at the moment t = n − τ . By this moment, B has ...
Similar publications
Security provisions are a significant influence in the conception of security system for wireless mesh networks (WMNs). It is therefore necessary to guard the identities of individual clients to avoid personal privacy concerns. Numerous susceptibilities exist in different protocols for WMNs (i.e. Overhead, storage, availability of resources). These...
Opportunistic routing achieves significant performance gain under lossy wireless links. In this paper, we develop a novel approach that exploits inter-flow network coding in oppor-tunistic routing. A unique feature of our design is that it systematically optimizes end-to-end performance (e.g., total throughput). A key challenge to achieve this goal...
Wireless Mesh Network (WMN) has received considerable attention as a means to achieve connectivity in community and commercial networks. Protocols at different stack layers have varying effects both on the energy consumption and the general performance of WMN backbone nodes. Previous studies have shown that, simulations have often been used to obta...
Citations
... Another research direction to be pursued is to develop a more efficiency peering selection and management mechanism to increase the lifetime of formed clusters. To the best of our knowledge, to date, few works [55,56] studying or proposing new mesh peering selection mechanisms. ...
The IEEE 802.11s standard specifies a mesh technology to be supported by IEEE 802.11 devices. Among the limitations caused by this heritage, we focus on the low scalability of the current IEEE 802.11s standard mechanisms. As a main contribution to the related research field, this article presents the DHT-based Cluster Routing Protocol (DCRP). DCRP addresses IEEE 802.11s’ scalability issues by exploiting both Distributed Hash Tables and Clustering schemes, which have proved to be effective in scaling wireless (e.g., MANETs) and wired (e.g., P2P) networking systems. DCRP was implemented and compared with the HWMP through simulation for different scalability parameters and performance metrics. Simulation results indicate that the proposed scheme improves performance in terms of packet delivery ratio, end-to-end delay, throughput, and overhead.
... Further if BA is never returned during the BA timeout period then frames could have been collided. This clarity on transmit frames is useful in a WMN to adjust the transmit power levels and CST of an MP to avoid collisions as a result of an optimum collision domain separation [30] [46] [11] [33]. ...
Wireless mesh networking gained an international interest over the years as a result to high recognition in the wireless industry as a cost effective, scalable, wider coverage and capacity capable wireless technology. The contention based distributed medium access in wireless networks has advanced not only in supporting the quality of multimedia but also achieving high throughput and to minimize packet delay overheads in legacy systems. Unfortunately, the impact of such enhancement has not been fully justified with mesh network environments yet. The medium access frames are required to be contended over multi-hops to overcome the challenges of improving overall system performance through concurrent transmissions. The goal of this paper is to discuss the issues and challenges of transmission fairness and the effect of concurrent transmission on system performance. To mitigate transmission fairness issues, we review existing open literature on mesh networking and provide guidelines for better system design and deployment. Finally, we conclude the paper with future research directions. This study may help network designer and planner to overcome the remaining challenging issues in the design and deployment of WMNs worldwide.
... Another algorithm used in TBRPF [8] also provides link quality hysteresis by opening a link with a neighbor if HELLO ACQUIRE COUNT of the last HELLO ACQUIRE WINDOW HELLOs sent by the neighbor node are received. If HELLO ACQUIRE COUNT = HELLO ACQUIRE WINDOW, we obtain an approach proposed in [9], [10] and studied in this paper. ...
... To overcome this problem, several papers introduce NDLM efficiency indices [5], [9], [10] and constraints on their values. In [10], we propose an analytical method to configure Mesh Peering Management Protocol (MPMP), a NDLM mechanism specified in IEEE 802.11s mesh networks standard. ...
... To overcome this problem, several papers introduce NDLM efficiency indices [5], [9], [10] and constraints on their values. In [10], we propose an analytical method to configure Mesh Peering Management Protocol (MPMP), a NDLM mechanism specified in IEEE 802.11s mesh networks standard. With the proposed mathematical model, we study the efficiency of different strategies used in MPMP implementations and configure MPMP for different scenarios. ...
In mobile ad-hoc networks (MANETs), neighborhood discovery and link management (NDLM) mechanism is used by each node to determine the set of its neighbors, or in other words, to establish one-hop links. Values of this mechanism parameters dramatically affect network performance, especially when real-time traffic is transmitted with proactive routing protocols, which imposes constraints on link quality, i.e. reliability, stability and decision-making latency. The efficiency of NDLM mechanisms is usually evaluated by simulation. The core contribution of this paper is an analytical study of NDLM mechanism defined in OLSR protocol specification. With the developed analytical model of the mechanism, we find the set of parameter values which allow to meet the constraints on link quality indices. By simulation, we show that the usage of these values improves the performance of the network loaded with voice traffic.
Scalability and topological stability are two of the most challenging issues in current wireless mesh networks (WMNs) deployments. In the literature, both the scalability and the topological stability of WMNs are described as likely to suffer from poor performance due to the ad hoc nature of the underlying IEEE 802.11 mechanisms. The main contribution of this article is a comprehensive review of the main topological stability and scalability-related issues in IEEE 802.11s-based networks. Moreover, the most relevant proposed solutions are surveyed, where both the drawbacks and the merits of each proposal are highlighted. At the end of the article, some open research challenges are presented and discussed. It is expected that this work may serve as motivation for more and deeper research on these issues to allow the design of future more stable and scalable IEEE 802.11s mesh networks deployments. Copyright © 2015 John Wiley & Sons, Ltd.
