IMPLEMENTATION OF CHORDAL RING NETWORK TOPOLOGY TO ENHANCE THE PERFORMANCE OF WIRELESS BROADBAND NETWORK

The expansion of networks involved higher jump on the users utilizing the networks resources, which may require extra higher bandwidth. Due to the development of technology especially those folded under the Internet of Things (IoT), the new demand of higher data rate is been witnesses among the users. In order to feed the demand of users with high data rate, broadband networks are required where high data rate can be ensured for each user. Broadband networks can be established using optical network that carries the data through wide broadband. Areas such as rural and forests sides which are witnessing plenty of natural obstacles such as mountains, trees, seas, etc. are forming big challenge for propagating a cable (wire) or optical network. Due to the limitations of the wire network, World Interoperability for Microwave Access (WiMAX) technology has been introduced as substitution for the broadband network. Such kind of alternative can be deployed through any geographical area without concerning on the wire paths. WiMAX preserved large coverage area and hence it may not suffer from the signal hand-off as in the case of another wireless network. In this project, Chordal Ring network topology is implemented to enhance the performance of wireless broadband network. With different routing protocols such as Destination Sequenced Distance Vector Protocol (DSDV) and Ad hoc On Demand Distance Vector (AODV), the network performance was examined for various Chordal Ring degree (e.g. fourth degree and fifth degree). Performance metrics such as number of transmitted packets, number of received packers, delivered packet rate (PDR), total number of drop packers (DP) and average queuing delay (been measured). Finally, the obtained results had been shown that fifth-degree Chordal Ring network is outperforming through DSDV routing protocol

Evaluation of a wireless Broadband Network for VoIP in Huaytará

Consiste en diseñar y evaluar el rendimiento de una red inalámbrica de banda ancha en la provincia de Huaytará, para la conectividad a internet. Es una investigación aplicada y experimental donde se evaluó los parámetros de rendimiento de la red. La variable dependiente es la capacidad de la celda Wlan y los parámetros de QoS; y como variables independientes la cobertura y la densidad de la red Wlan. Se puede afirmar que para radios de hasta 8 metros, la tasa de datos del cliente experimental es superior a la tasa de datos del cliente control, y para radios mayores a 15 metros, las tasas de datos del cliente experimental y control no son diferentes. En cuanto a los parámetros de QoS, son favorables para las aplicaciones multimedia. La red implementada con tecnología TDM-E1/Ethernet e IEEE 802.11n, tiene una capacidad máxima por celda de 32.5 Mbps en la banda de 2.4G y de 65 Mbps en la banda de 5.8G, considerando parámetros de operación mínimo de los dispositivos inalámbricos. Los usuarios tienen un tasa de datos en campo de 15.2 Mbps para una radio máximo de 8 metros con hasta 7 usuarios inalámbricos conectados en la celda, en 2.4 Ghz.

Novel Approach for Evaluating Video Transmission using Combined Scalable Video Coding over Wireless Broadband Network

One of the main problems in video transmission is the bandwidth fluctuation in wireless channel. Therefore, there is an urgent need to find an efficient bandwidth utilization and method. This research utilizes the Combined Scalable Video Coding (CSVC) which comes from Joint Scalable Video Model (JSVM). In the combined scalable video coding, we implement Coarse Grain Scalability (CGS) and Medium Grain Scalability (MGS). We propose a new scheme in which it can be implemented on Network Simulator II (NS-2) over wireless broadband network. The advantages of this new scheme over the other schemes are more realistic and based on open source program. The result shows that CSVC implementation on MGS mode outperforms CGS mode.

The Analysis of Mobile Internet Impacts on Electronic Commerce System Construction

This article analyzes the new changes of e-commerces means and business model based on the development of mobile internet. Furthermore, Combined with the influence of the technological progress, such as wireless broadband network, mobile intelligent terminal and cloud computing, this paper puts forward an open system architecture of electronic commerce and its six module systems, and expounds the system design and deployment method in mobile internet environment.