Title :
On bandwidth request mechanism with piggyback in fixed IEEE 802.16 networks
Author :
He, Jianhua ; Yang, Kun ; Guild, Ken ; Chen, Hsiao-Hwa
Author_Institution :
Inst. of Adv. Telecommun., Swansea Univ., Swansea
fDate :
12/1/2008 12:00:00 AM
Abstract :
This paper investigates the random channel access mechanism specified in the IEEE 802.16 standard for the uplink traffic in a point-to-multipoint (PMP) network architecture. An analytical model is proposed to study the impacts of the channel access parameters, bandwidth configuration and piggyback policy on the performance. The impacts of physical burst profile and non-saturated network traffic are also taken into account in the model. Simulations validate the proposed analytical model. It is observed that the bandwidth utilization can be improved if the bandwidth for random channel access can be properly configured according to the channel access parameters, piggyback policy and network traffic.
Keywords :
broadband networks; radio access networks; telecommunication traffic; bandwidth configuration; bandwidth request mechanism; broadband wireless access; fixed IEEE 802.16 networks; network traffic; physical burst profile; piggyback policy; point-to-multipoint network architecture; random channel access mechanism; uplink traffic; Analytical models; Bandwidth; Communication system traffic control; Helium; Media Access Protocol; Multiaccess communication; Physical layer; Portable media players; Telecommunication traffic; Traffic control; IEEE 802.16, media access control, wireless; network, performance evaluation.;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/T-WC.2008.071226
