Premium
Guaranteed quality‐of‐service wireless access by packet‐by‐packet generalized processor sharing algorithm
Author(s) -
Chang ChiaSheng,
Chen KwangCheng
Publication year - 2000
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/1099-1131(200009)13:6<461::aid-dac465>3.0.co;2-9
Subject(s) - computer science , variable bitrate , computer network , constant bitrate , quality of service , jitter , network packet , retransmission , frame (networking) , wireless , wireless network , bandwidth (computing) , generalized processor sharing , real time computing , telecommunications , dynamic priority scheduling , rate monotonic scheduling
To serve traffic with different characteristics and service requirements in multimedia wireless networks, we propose a multiaccess methodology PGPS/RAP with guaranteed quality‐of‐service (QoS) to serve constant‐bit‐rate (CBR), variable‐bit‐rate (VBR), and available‐bit‐rate (ABR) traffic. This multiaccess methodology without any specific frame concept can guarantee worst‐case delay of CBR and VBR traffic and therefore can guarantee the QoS of delay‐, jitter‐sensitive CBR and VBR traffic. The derived delay bound of a specific traffic source only depends on its own traffic parameters. Without disturbing the delay bound correlation between traffic sources, this characteristic consequently results in a call admission control policy with relatively low complexity. Even in unreliable channels, by using the proposed simple retransmission policy, PGPS/RAP still functions to meet multimedia wireless networking requirements. Furthermore, with the technique known as pipelining, PGPS/RAP multiaccess can operate in a multiaccess channel with long propagation delay, and guarantee jitter of CBR and VBR interarrival times. Our simulation results also justify the derived bounds and demonstrate the advantage of our frame‐less bandwidth allocation capability of PGPS/RAP in wireless access networks. Copyright © 2000 John Wiley & Sons, Ltd.