Optimizing wireless channel using adaptive modulation to improve QoS in VANET
Document Type
Article
Publication Date
1-1-2013
Abstract
Vehicular Ad Hoc Network (VANET) is a multi-hop wireless network which involves vehicles acting as nodes to communicate with each other without infrastructural support. With the increase in Quality of Service (QoS) needs in evolving applications and the widespread use of wireless and mobile devices, it is desirable to support QoS in VANETs. The resource limitations and variability further add to the need for QoS support in such networks. However, the characteristics of these networks make QoS support a complex process due to rapid topology changes caused by high mobility of communicating nodes. Modulation scheme implemented in wireless network affect the data rate hence the throughput of the communicating nodes, this in turn affect QoS. The paper focuses on adaptive modulation to improve the data throughput and efficiency of channel spectrum in VANET. Through theoretical and simulation results, it was shown that adaptive modulation performs well and improves throughput than other modulations schemes when used singularly in dynamic changing network topology like VANET.
Keywords
VANET MANET Quality of Service Modulation BER SNR
Divisions
Computer
Publication Title
Malaysian Journal of Computer Science
Volume
26
Issue
1
Additional Information
ISI Document Delivery No.: 093LW Times Cited: 0 Cited Reference Count: 21 Christopher, Chembe Noor, Rafidah Md Mostajeran, Ehsan Univ malaya, fac computer science & information tech Kuala lumpur