The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Protokol DQRUMA/MC-CDMA asal mungkin mengalami perlanggaran kod yang teruk disebabkan bilangan kod permintaan yang terhad. Protokol DQRUMA/MC-CDMA yang dipertingkat menggunakan minislot untuk akses permintaan dicadangkan untuk mengurangkan perlanggaran permintaan. Dalam protokol yang dicadangkan, percubaan permintaan dihantar serentak dengan paket data panggilan lain. Skim rawak (Skim I) dan skim yang ditetapkan (Skim II) dibezakan bergantung pada kaedah yang memilih kod permintaan dan minislot permintaan berdasarkan kumpulan kekisi untuk akses permintaan (LPRA). Kedua-dua skim menghasilkan kelewatan akses permintaan yang rendah disebabkan oleh sedikit atau tiada perlanggaran semasa akses permintaan. Dalam Skim I salah satu minislot permintaan dipilih dengan kod yang dipilih secara rawak, manakala dalam Skim II minislot dan kod yang digunakan secara unik dalam percubaan permintaan boleh menyelesaikan masalah perlanggaran kod semasa akses permintaan. Prestasi protokol yang dicadangkan dinilai melalui simulasi dan hasilnya menunjukkan bahawa protokol yang dicadangkan mengatasi protokol DQRUMA/MC-CDMA asal dari segi jumlah kelewatan purata.
berbilang kod, CDMA, MAC, LPRA
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Salinan
Jae-Yoon PARK, Duk-Kyung KIM, Dan-Keun SUNG, "An Enhanced DQRUMA/MC-CDMA Protocol for Wireless Packet Networks" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 7, pp. 1567-1571, July 2000, doi: .
Abstract: The original DQRUMA/MC-CDMA protocol may suffer severe code collisions due to a limited number of request codes. An enhanced DQRUMA/MC-CDMA protocol using minislots for request accesses is proposed to reduce request collisions. In the proposed protocol, request attempts are transmitted concurrently with data packets of other calls. A random scheme (Scheme I) and a designated scheme (Scheme II) are distinguished depending on the methods which select a request code and a request minislot based on a lattice pool for request accesses (LPRA). Both schemes yield low request access delays due to few or no collisions during request accesses. In Scheme I one of request minislots is selected with a randomly chosen code, while in Scheme II the minislot and the code uniquely used in request attempts can resolve a code collision problem during request accesses. The performance of the proposed protocol is evaluated by simulation and the result shows that the proposed protocol outperforms the original DQRUMA/MC-CDMA protocol in terms of average total delay.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_7_1567/_p
Salinan
@ARTICLE{e83-b_7_1567,
author={Jae-Yoon PARK, Duk-Kyung KIM, Dan-Keun SUNG, },
journal={IEICE TRANSACTIONS on Communications},
title={An Enhanced DQRUMA/MC-CDMA Protocol for Wireless Packet Networks},
year={2000},
volume={E83-B},
number={7},
pages={1567-1571},
abstract={The original DQRUMA/MC-CDMA protocol may suffer severe code collisions due to a limited number of request codes. An enhanced DQRUMA/MC-CDMA protocol using minislots for request accesses is proposed to reduce request collisions. In the proposed protocol, request attempts are transmitted concurrently with data packets of other calls. A random scheme (Scheme I) and a designated scheme (Scheme II) are distinguished depending on the methods which select a request code and a request minislot based on a lattice pool for request accesses (LPRA). Both schemes yield low request access delays due to few or no collisions during request accesses. In Scheme I one of request minislots is selected with a randomly chosen code, while in Scheme II the minislot and the code uniquely used in request attempts can resolve a code collision problem during request accesses. The performance of the proposed protocol is evaluated by simulation and the result shows that the proposed protocol outperforms the original DQRUMA/MC-CDMA protocol in terms of average total delay.},
keywords={},
doi={},
ISSN={},
month={July},}
Salinan
TY - JOUR
TI - An Enhanced DQRUMA/MC-CDMA Protocol for Wireless Packet Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 1567
EP - 1571
AU - Jae-Yoon PARK
AU - Duk-Kyung KIM
AU - Dan-Keun SUNG
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2000
AB - The original DQRUMA/MC-CDMA protocol may suffer severe code collisions due to a limited number of request codes. An enhanced DQRUMA/MC-CDMA protocol using minislots for request accesses is proposed to reduce request collisions. In the proposed protocol, request attempts are transmitted concurrently with data packets of other calls. A random scheme (Scheme I) and a designated scheme (Scheme II) are distinguished depending on the methods which select a request code and a request minislot based on a lattice pool for request accesses (LPRA). Both schemes yield low request access delays due to few or no collisions during request accesses. In Scheme I one of request minislots is selected with a randomly chosen code, while in Scheme II the minislot and the code uniquely used in request attempts can resolve a code collision problem during request accesses. The performance of the proposed protocol is evaluated by simulation and the result shows that the proposed protocol outperforms the original DQRUMA/MC-CDMA protocol in terms of average total delay.
ER -