Performance improvements of data-link layer protocol in WATM

Sungchun Park, Sungwon Lee, Young Jae Song, Dong Ho Cho, Yong Bae Dhong

Research output: Contribution to conferencePaperpeer-review

Abstract

In these days, mobile communication service has characteristics of high speed and multi-media. Due to the high error ratio of wireless link environments, a DLC protocol that is optimized for wire network could not be used in wireless link environments. Thus, DLC protocol that is suitable to mobile communication environments is required. To solve these problems, we propose an efficient WATM DLC layer protocol. The proposed DLC protocol could support various traffic attributes of high-speed multimedia services. That is, the proposed DLC layer protocol provides piggyback response, Multiple-Ack, and Multiple Retransmission mechanism based on SR-ARQ. Also, outband retransmission scheme using dynamic bandwidth is provided for delay sensitive service and multi-copy transmission is applied in a seriously faded radio environments such as handover. According to simulation results, suggested schemes show better performance than conventional SR-ARQ protocol in view of cell transmission delay and throughput.

Original languageEnglish
Pages1090-1094
Number of pages5
Publication statusPublished - 2000
Event2000 IEEE International Conference on Communications - New Orleans, LA, USA
Duration: 18 Jun 200022 Jun 2000

Conference

Conference2000 IEEE International Conference on Communications
CityNew Orleans, LA, USA
Period18/06/0022/06/00

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