Optimizing Wireless Channel Using Adaptive Modulation To Improve QoS In VANET

Malaysian Journal of Computer Science

Ehsan Mostajeran¹  Chembe Christopher¹  Rafidah Md. Noor¹ 

关键词: VANET;    MANET;    Quality of Service;    Modulation;    BER;    SNR;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: University of Malaya * Faculty of Computer Science and Information Technology

【 摘 要 】

Vehicular Ad Hoc Network (VANET) is a multi-hop wireless network which involves vehicles acting as nodes tocommunicate with each other without infrastructural support. With the increase in Quality of Service (QoS) needs inevolving applications and the widespread use of wireless and mobile devices, it is desirable to support QoS inVANETs. 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 changescaused by high mobility of communicating nodes. Modulation scheme implemented in wireless network affect thedata rate hence the throughput of the communicating nodes, this in turn affect QoS. The paper focuses on adaptivemodulation to improve the data throughput and efficiency of channel spectrum in VANET. Through theoretical andsimulation results, it was shown that adaptive modulation performs well and improves throughput than othermodulations schemes when used singularly in dynamic changing network topology like VANET.

【 授权许可】

Unknown