scholarly journals The Design and Implementation of the XWCETT Routing Algorithm in Cognitive Radio Based Wireless Mesh Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
L. M. Kola ◽  
M. Velempini
Keyword(s):  
Cognitive Radio ◽  
Wireless Mesh Networks ◽  
Routing Protocol ◽  
Routing Protocols ◽  
High Speed ◽  
Mesh Networks ◽  
Routing Algorithm ◽  
Delivery Ratio ◽  
Broadband Internet ◽  
Wireless Mesh

The Wireless Mesh Networks (WMNs) technology has recently emerged as a promising high-speed wireless technology, which provides the last mile broadband Internet access and delivers integrated wireless communication solutions. Integrating the traditional wireless with new wireless technologies such as cognitive radio (CR) technology creates a platform for high-speed broadband communication. In a multihop ad hoc cognitive radio network (CRN) environment, the performance of the network is degraded by the routing protocols, which are adapted from the traditional wireless networks. In an endeavor to optimize the performance of the CRNs, existing routing protocols can be adapted and optimized. Secondly, new dynamic routing protocols can be designed to meet the requirements of CRNs. This paper investigates the existing routing protocols in WMNs and proposes a new routing protocol called extended Weighted Cumulative Expected Transmission Time (xWCETT). The xWCETT routing protocol was evaluated through network simulations using the NS 2. Its performance was evaluated with respect to the end-to-end average latency, the throughput, jitter, packet delivery ratio, and the normalized routing load. The comparative evaluation results show that the xWCETT achieves superior results in terms of average throughput, latency, and the normalized routing load.

scholarly journals Cluster based Routing Protocol for Cognitive Radio Wireless Mesh Networks

2013 ◽  
Vol 80 (12) ◽  
pp. 27-31
Author(s):  
Pavan KumarT ◽  
Ramesh Babu B ◽  
Rajasekhar Rao K ◽  
Dinesh Gopalni
Keyword(s):  
Cognitive Radio ◽  
Wireless Mesh Networks ◽  
Routing Protocol ◽  
Mesh Networks ◽  
Wireless Mesh ◽  
Cluster Based Routing

Link Capacity Based Channel Assignment (LCCA) for Cognitive Radio Wireless Mesh Networks

2013 ◽  
Vol 65 (1) ◽  
Author(s):  
Wajahat Maqbool ◽  
Sharifah K. Syed Yusof ◽  
N. M. Abdul Latiff ◽  
Hashim S. ◽  
Rahat U. ◽  
...  
Keyword(s):  
Cognitive Radio ◽  
Wireless Mesh Networks ◽  
Channel Assignment ◽  
Mesh Networks ◽  
Mesh Network ◽  
Delivery Ratio ◽  
Link Capacity ◽  
Wireless Mesh ◽  
User Activity ◽  
Decision Engine

Cognitive radio wireless mesh network (CRWMN) is expected as an upcoming technology with the potential advantages of both cognitive radio (CR) and the wireless mesh networks (WMN). In CRWMN, co-channel interference is one of the key limiting factors that affect the reception capabilities of the client and reduce the achievable transmission rate. Furthermore, it increases the frame loss rate and results in underutilization of resources. To maximize the performance of such networks, interference related issues need to be considered. Channel assignment (CA) is one of the key techniques to overcome the performance degradation of a network caused by the interferences. To counter the interference issues, we propose a novel CA  technique which is based on link capacity, primary user activity and secondary user activity. These three parameters are fed to the proposed weightage decision engine to get the weight for each of the stated parameters. Thus, the link capacity based channel assignment (LCCA) algorithm is based on the weightage decision engine. The end-to-end delay, packet delivery ratio and the throughput is used to estimate the performance of the proposed algorithm. The numerical results demonstrate that the proposed algorithm is closer to the optimum resource utilization. 

Routing Protocols Design and Performance Evaluation in Wireless Mesh Networks

2019 ◽  
Vol 10 (1) ◽  
pp. 60-74 ◽  
Author(s):  
Mohsen S. Alsaadi ◽  
Naif D. Alotaibi
Keyword(s):  
Performance Evaluation ◽  
Wireless Network ◽  
Wireless Mesh Networks ◽  
Routing Protocol ◽  
Routing Protocols ◽  
Mesh Networks ◽  
Self Healing ◽  
Wireless Mesh ◽  
Network Utilization ◽  
And Performance

The wireless mesh networks (WMNs) have become one of the popular technologies of the wireless network utilization. WMN provides reliable and scalable wireless network because of its features such as dynamic self-organizing, self-configuring, Self-managing and self-healing. Routing protocols play an essential role in finding and establishing an active route from a source to a destination in WMNs. This article focuses on the performance evaluation and comparison of some routing protocols commonly used in WMNs for VoIP application: AODV, DSR, OLSR and TORA has been investigated over client Wireless Mesh Networks based on OPNET simulation in a different network sizes and mobility. This article presents a background of some designs and solutions based on an elaborated simulation investigation. The performance comparisons are carried out with regard to the node variation in network sizing and mobility. Based on the empirical outputs, the authors suggested that to utilize a specific routing protocol in certain situations.

Performance Evaluation of Routing Protocols in Live Video Streaming over Wireless Mesh Networks

2013 ◽  
Vol 62 (1) ◽  
Author(s):  
Behrang Barekatain
Keyword(s):  
Video Streaming ◽  
Wireless Mesh Networks ◽  
Routing Protocol ◽  
Routing Protocols ◽  
Performance Metrics ◽  
Mesh Networks ◽  
Node Mobility ◽  
Live Video ◽  
Live Video Streaming ◽  
Wireless Mesh

In recent years, live video streaming over Wireless Mesh Networks (WMNs) has been of great interest among users. However, node mobility, interferences and competition on the available resources are some important factors, to name a few, which can considerably affect the perceived video quality on wireless nodes. In this regard, employing an efficient routing protocol can address these challenges as much as possible. The fact of the matter is that the real performances of the most recently used routing protocols in live video streaming over WMNs is remaining as an open issue. Therefore, this study design and implement a simulator using the OMNET++ framework and measure the performances of these routing protocols under various and different network conditions based on the different performance metrics. To the best of our knowledge, this is the first study which precisely and comprehensively performs this evaluation. The obtained results not only help interested researchers to select the most appropriate routing protocol for their proposed video streaming applications over WMNs, but also let them introduce more efficient hybrid protocols based on the considered routing protocols in this study

On Multipath Routing Algorithm of Multiple QoS Based on DSR Protocol

2012 ◽  
Vol 241-244 ◽  
pp. 2910-2914
Author(s):  
Chun Xia Wang ◽  
Tao Shen Li ◽  
Zhi Hui Ge
Keyword(s):  
Load Balancing ◽  
Wireless Mesh Networks ◽  
Routing Protocol ◽  
Mesh Networks ◽  
Routing Algorithm ◽  
Multipath Routing ◽  
High Rate ◽  
Wireless Mesh ◽  
Qos Performance ◽  
Multiple Qos

Wireless Mesh Networks are new type of multi-hop wireless network with high rate and strong reliability. Multipath routing is employed for load balancing, fault tolerance purposes in wireless mesh networks. With the more and more application need, multipath routing has gradually become an important topic to study. An algorithm of multipath routing algorithm based on dynamic source routing protocol(DSR) is proposed in this paper. This algorithm provides multiple QoS guarantee, such as bandwidth, delay and cost, achieves multipath load balancing and improves networks’ performance. The experimental results show that our algorithm achieves better QoS performance and more advantages over DSR and split multipath routing protocol(SMR).

Routing Protocols Design and Performance Evaluation in Wireless Mesh Networks

2019 ◽  
Vol 10 (1) ◽  
pp. 81-95
Author(s):  
Mohsen S. Alsaadi ◽  
Naif D. Alotaibi
Keyword(s):  
Performance Evaluation ◽  
Wireless Network ◽  
Wireless Mesh Networks ◽  
Routing Protocol ◽  
Routing Protocols ◽  
Mesh Networks ◽  
Self Healing ◽  
Wireless Mesh ◽  
Network Utilization ◽  
And Performance

The wireless mesh networks (WMNs) have become one of the popular technologies of the wireless network utilization. WMN provides reliable and scalable wireless network because of its features such as dynamic self-organizing, self-configuring, Self-managing and self-healing. Routing protocols play an essential role in finding and establishing an active route from a source to a destination in WMNs. This article focuses on the performance evaluation and comparison of some routing protocols commonly used in WMNs for VoIP application: AODV, DSR, OLSR and TORA has been investigated over client Wireless Mesh Networks based on OPNET simulation in a different network sizes and mobility. This article presents a background of some designs and solutions based on an elaborated simulation investigation. The performance comparisons are carried out with regard to the node variation in network sizing and mobility. Based on the empirical outputs, the authors suggested that to utilize a specific routing protocol in certain situations.

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