Heterogenous Traffic Performances on Local Multipoint Distribution Service System in Rainy Environment
Abstract: Local multipoint
distribution service (LMDS) system provides high bitrates services up to 40
Mbps operating in millimeter bands. The radio system can be employed to serve
heterogenous traffics in any applications such as video surveillance, public
internet hotspots and other services. However, the implementation in tropical
area faces transmission problems which degrade signal reception, such as heavy
rain. This paper examines the performance of heterogenous traffics in LMDS in a
rainy environment. Some techniques to tackle rain ploblems were implemented and
the effects were assesed. It was proven that PHY and MAC layers contribute to
performances enhancement on rainy environment as long as the system uses the
suitable scheduler. A packet-based scheduler was proposed by considering packet
impact on quality. The results showed that the proposed technique is able to
improve video performance about 0.02% over the maximum signal to noise (mSNR)
scheduler, maintain voice decoding rate as well as the priority fair (PF)
scheduler and increase data decodibility 0.2%.
Author: Naemah Mubarakah,
Suherman, Yulianta Siregar, Arman Sani
Journal Code: jptkomputergg150053
