Proceedings ArticleDOI
A comparative study of channel switching latency for conventional and SDN-based routing in multi-hop multi-radio Wireless Mesh Networks
Dawood Sajjadi,Maryam Tanha,Jianping Pan +2 more
- pp 330-334
Reads0
Chats0
TLDR
A concise analysis of channel switching latency in multi-hop multi-radio scenarios for OLSR, BATMAN-adv and Open80211s protocols through experimentation testbed shows that although by using SDN it is feasible to improve the network responsiveness, still the channel switching delay is not negligible.Abstract:
Nowadays, Wireless Mesh Networks (WMNs) have received worldwide acceptance as an attractive paradigm on top of the existing and upcoming wireless technologies. Up to now, a lot of research studies have been conducted on the channel assignment in multi-radio WMNs. To address the destructive impact of interference as an inevitable element of WMNs, it is necessary to reconfigure the wireless radios for switching to the less-congested channels, frequently. Although this problem has been investigated through extensive modeling and simulations, the consequences of channel switching for popular WMN routing schemes have not been assessed sufficiently. In this paper, we present a concise analysis of channel switching latency in multi-hop multi-radio scenarios for OLSR, BATMAN-adv and Open80211s protocols through experimentation testbed. Moreover, we evaluate the functionality of SDN-based WMNs in terms of channel switching delay. The acquired results substantiate that although by using SDN it is feasible to improve the network responsiveness, still the channel switching latency is not negligible.read more
Citations
More filters
Proceedings ArticleDOI
Small Cell Wireless Backhaul Reconfiguration Using Software-Defined Networking
Ricardo Santos,Andreas Kassler +1 more
TL;DR: This paper uses a Software-Defined Networking (SDN) based architecture for the operation and management of small cell backhaul networks and shows that the network downtime for existing traffic due to channel re-assignment is significantly reduced, when comparing to a distributed routing based approach.
Proceedings ArticleDOI
Mini-Mesh: Practical assessment of a miniaturized IEEE 802.11n/s mesh testbed
Michael Rethfeldt,Benjamin Beichler,Hannes Raddatz,Felix Uster,Peter Danielis,Christian Haubelt,Dirk Timmermann +6 more
TL;DR: Mini-Mesh, a miniaturized indoor 802.11n/s testbed for low-level mesh interoperability at the WLAN MAC layer, is presented and a path loss model is parameterized helping to estimate outdoor dimensions for arbitrary indoor mesh topologies.
Journal ArticleDOI
mmWave Backhaul Testbed Configurability Using Software-Defined Networking
Ricardo Santos,Konstantin Koslowski,Julian Daube,Hakim Ghazzai,Andreas Kassler,Kei Sakaguchi,Thomas Haustein +6 more
TL;DR: A Software-Defined Networking (SDN) based approach is developed to enable such a dynamic backhaul reconfiguration and is used to use real-world mmWave equipment to setup a SDN-enabled mmWave testbed to conduct various reconfigured experiments.
Proceedings ArticleDOI
Meta-Heuristic Solution for Dynamic Association Control in Virtualized Multi-Rate WLANs
TL;DR: This paper presents a versatile near-optimal solution for the fair bandwidth distribution over virtualized WLANs through dynamic association control called ACO-PF, developed on top of Ant Colony Optimization (ACO) as a meta-heuristic technique to provide Proportional Fairness (PF) among the greedy clients.
Journal ArticleDOI
Load Balancing Routing for Wireless Mesh Network With Energy Harvesting
Yuan Chai,Xiao-Jun Zeng +1 more
TL;DR: An effective centralized load balancing routing (LBR) for wireless mesh network considering energy harvesting is proposed in this letter which can provide flexible and optimal routes for real-time traffic.
References
More filters
Optimized Link State Routing Protocol (OLSR)
Thomas Clausen,Philippe Jacquet +1 more
TL;DR: The Optimized Link State Routing protocol is an optimization of the classical link state algorithm tailored to the requirements of a mobile wireless LAN and provides optimal routes (in terms of number of hops).
Journal ArticleDOI
Channel Assignment Strategies for Multiradio Wireless Mesh Networks: Issues and Solutions
TL;DR: A new channel assignment scheme called MesTiC is described, which incorporates the mesh traffic pattern together with connectivity issues in order to minimize interference in multi- radio mesh networks.
Proceedings ArticleDOI
OpenFlow for Wireless Mesh Networks
TL;DR: This work proposes an architecture that integrates OpenFlow with WMNs and provides such flow-based routing and forwarding capabilities and implemented a simple solution to solve the problem of client mobility in a WMN which handles the fast migration of client addresses.
Better Approach To Mobile Ad-hoc Networking (B.A.T.M.A.N.)
TL;DR: This document specifies a simple and robust algorithm for establishing multi-hop routes in mobile ad-hoc networks that ensures highly adaptive and loop-free routing while causing only low processing and traffic cost.
Proceedings ArticleDOI
Wireless Mesh Software Defined Networks (wmSDN)
TL;DR: The wmSDN software toolkit is formed by Open vSwitch, POX controller, OLSR daemon and the own Bash and Python scripts, showing its applicability to a traffic engineering use-case, in which the controller logic balances outgoing traffic among the Internet gateways of the mesh.