TY - JOUR
T1 - Performance comparison of OFDM bandwidth request schemes in fixed IEEE 802.16 networks
AU - He, Jianhua
AU - Tang, Zuoyin
AU - Chen, Hsiao Hwa
N1 - Funding Information:
Manuscript received December 18, 2007. The associate editor coordinating the review of this letter and approving it for publication was P. Demestichas. This work was part-funded by the European Union through the Welsh Assembly Government, and Taiwan National Science Council grants NSC96-2221-E-006-345 and NSC96-2221-E-006-346.
PY - 2008
Y1 - 2008
N2 - IEEE 802.16 standard specifies two contention based bandwidth request schemes working with OFDM physical layer specification in point-to-multipoint (PMP) architecture, the mandatory one used in region-full and the optional one used in region-focused. This letter presents a unified analytical model to study the bandwidth efficiency and channel access delay performance of the two schemes. The impacts of access parameters, available bandwidth and subchannelization have been taken into account. The model is validated by simulations. The mandatory scheme is observed to perform closely to the optional one when subchannelization is active for both schemes.
AB - IEEE 802.16 standard specifies two contention based bandwidth request schemes working with OFDM physical layer specification in point-to-multipoint (PMP) architecture, the mandatory one used in region-full and the optional one used in region-focused. This letter presents a unified analytical model to study the bandwidth efficiency and channel access delay performance of the two schemes. The impacts of access parameters, available bandwidth and subchannelization have been taken into account. The model is validated by simulations. The mandatory scheme is observed to perform closely to the optional one when subchannelization is active for both schemes.
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U2 - 10.1109/LCOMM.2008.072124
DO - 10.1109/LCOMM.2008.072124
M3 - Article
AN - SCOPUS:58149485013
SN - 1089-7798
VL - 12
SP - 283
EP - 285
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 4
ER -