Title :
A novel scheduling algorithm for IP traffic in adaptive modulation system
Author :
Ji, Yang ; Li, Yingyang ; Zhang, Ping ; Hu, Jiandong
Author_Institution :
Wireless Technol. Innovation Lab., Beijing Univ. of Posts & Telecommun., China
fDate :
6/24/1905 12:00:00 AM
Abstract :
One property, bandwidth uneven distributed with time slots (BUDTS) in the adaptive modulation wireless system destroys an implicit assumption of traditional traffic scheduling algorithm that the bandwidth is evenly distributed with time slots. Therefore, new scheme fit for such circumstance is needed. We propose a novel algorithm, named adaptive differentiated compensation fair queuing (ADCFQ), to provide basic QoS requirement and fair residual bandwidth sharing to all backlogged flows, as well as the compensation mechanism to the lagged flows due to burst channel error. Simulation shows that in ADCFQ, the effect of uneven bandwidth distribution is well considered.
Keywords :
adaptive modulation; land mobile radio; multiuser channels; queueing theory; telecommunication traffic; time division multiple access; transport protocols; IP traffic; QoS requirement; TDD/TDMA system; adaptive differentiated compensation fair queuing; adaptive modulation system; backlogged flows; bandwidth uneven distributed with time slots; burst channel error; compensation mechanism; fair residual bandwidth sharing; mobile communication system; simulation; traffic scheduling algorithm; wireless system; Adaptive systems; Bandwidth; Delay; Forward error correction; Payloads; Scheduling algorithm; Signal to noise ratio; Throughput; Time division multiplexing; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002933
