An Enhanced DQRUMA/MC-CDMA Protocol for Wireless Packet Networks

Jae-Yoon PARK; Duk-Kyung KIM; Dan-Keun SUNG

An Enhanced DQRUMA/MC-CDMA Protocol for Wireless Packet Networks

Jae-Yoon PARK, Duk-Kyung KIM, Dan-Keun SUNG

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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.

Publication: IEICE TRANSACTIONS on Communications Vol.E83-B No.7 pp.1567-1571

Publication Date: 2000/07/25

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Type of Manuscript: LETTER

Category: Wireless Communication Technology

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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

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@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},}

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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 -