Spread ALOHA based random access scheme for macro cell CDMA systems

Zhenyu Xiao; Wentao Chen; Depeng Jin; Lieguang Zeng

doi:10.1109/ICCS.2008.4737357

Spread ALOHA based random access scheme for macro cell CDMA systems

Zhenyu Xiao^*
, Wentao Chen
, Depeng Jin
, Lieguang Zeng

^*Corresponding author for this work

Tsinghua University

Research output: Contribution to conference › Paper › peer-review

Abstract

The Slotted ALOHA based random access faces the low throughput and long access delay problems when used in macro cell CDMA systems. This paper proposes the Spread ALOHA based random access scheme as a solution. In our physical layer model, we studied the impact of multi-path on conflict interval and the Multiple Access Interference (MAI) from both the traffic channels and the request channel. Based on this model, the close-form theoretical results of throughput and average access delay are derived. Numerical results show that the proposed scheme has much better access performance, which is much higher throughput and much shorter access delay than the Slotted ALOHA based scheme. The improvement is enhanced as the load gets heavier.

Original language	English
Pages	1120-1124
Number of pages	5
DOIs	https://doi.org/10.1109/ICCS.2008.4737357
State	Published - 2008
Externally published	Yes
Event	2008 11th IEEE Singapore International Conference on Communication Systems, ICCS 2008 - Guangzhou, China Duration: 19 Nov 2008 → 21 Nov 2008

Conference

Conference	2008 11th IEEE Singapore International Conference on Communication Systems, ICCS 2008
Country/Territory	China
City	Guangzhou
Period	19/11/08 → 21/11/08

Keywords

CDMA
Multi-path
SAMA
Spread ALOHA

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10.1109/ICCS.2008.4737357

Cite this

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title = "Spread ALOHA based random access scheme for macro cell CDMA systems",

abstract = "The Slotted ALOHA based random access faces the low throughput and long access delay problems when used in macro cell CDMA systems. This paper proposes the Spread ALOHA based random access scheme as a solution. In our physical layer model, we studied the impact of multi-path on conflict interval and the Multiple Access Interference (MAI) from both the traffic channels and the request channel. Based on this model, the close-form theoretical results of throughput and average access delay are derived. Numerical results show that the proposed scheme has much better access performance, which is much higher throughput and much shorter access delay than the Slotted ALOHA based scheme. The improvement is enhanced as the load gets heavier.",

keywords = "CDMA, Multi-path, SAMA, Spread ALOHA",

author = "Zhenyu Xiao and Wentao Chen and Depeng Jin and Lieguang Zeng",

year = "2008",

doi = "10.1109/ICCS.2008.4737357",

language = "英语",

pages = "1120--1124",

note = "2008 11th IEEE Singapore International Conference on Communication Systems, ICCS 2008 ; Conference date: 19-11-2008 Through 21-11-2008",

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TY - CONF

T1 - Spread ALOHA based random access scheme for macro cell CDMA systems

AU - Xiao, Zhenyu

AU - Chen, Wentao

AU - Jin, Depeng

AU - Zeng, Lieguang

PY - 2008

Y1 - 2008

N2 - The Slotted ALOHA based random access faces the low throughput and long access delay problems when used in macro cell CDMA systems. This paper proposes the Spread ALOHA based random access scheme as a solution. In our physical layer model, we studied the impact of multi-path on conflict interval and the Multiple Access Interference (MAI) from both the traffic channels and the request channel. Based on this model, the close-form theoretical results of throughput and average access delay are derived. Numerical results show that the proposed scheme has much better access performance, which is much higher throughput and much shorter access delay than the Slotted ALOHA based scheme. The improvement is enhanced as the load gets heavier.

AB - The Slotted ALOHA based random access faces the low throughput and long access delay problems when used in macro cell CDMA systems. This paper proposes the Spread ALOHA based random access scheme as a solution. In our physical layer model, we studied the impact of multi-path on conflict interval and the Multiple Access Interference (MAI) from both the traffic channels and the request channel. Based on this model, the close-form theoretical results of throughput and average access delay are derived. Numerical results show that the proposed scheme has much better access performance, which is much higher throughput and much shorter access delay than the Slotted ALOHA based scheme. The improvement is enhanced as the load gets heavier.

KW - CDMA

KW - Multi-path

KW - SAMA

KW - Spread ALOHA

UR - https://www.scopus.com/pages/publications/62949084847

U2 - 10.1109/ICCS.2008.4737357

DO - 10.1109/ICCS.2008.4737357

M3 - 论文

AN - SCOPUS:62949084847

SP - 1120

EP - 1124

T2 - 2008 11th IEEE Singapore International Conference on Communication Systems, ICCS 2008

Y2 - 19 November 2008 through 21 November 2008

ER -

Spread ALOHA based random access scheme for macro cell CDMA systems

Abstract

Conference

Keywords

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