Performance enhancement by narrow-beam quad-sector cell and interleaved channel assignment in wireless networks

Li-Chun Wang; Kin K. Leung

doi:10.1109/GLOCOM.1999.831793

Performance enhancement by narrow-beam quad-sector cell and interleaved channel assignment in wireless networks

Li-Chun Wang^*, Kin K. Leung

^*Corresponding author for this work

Department of Electrical and Computer Engineering

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

11 Scopus citations

Abstract

In this paper, we propose an improved sectorization scheme for cellular networks, called Narrow Beam Quad-sector Cell (NBQC), in which each cell is divided into 4 sectors and each sector is covered by a 60° antenna. The NBQC architecture has better coverage performance than the current 3-sector cellular architecture. More importantly, the NBQC architecture allows easy implementation of the powerful interleaved channel assignment (ICA) scheme. Because of taking full advantage of antenna directivity, the NBQC architecture with the ICA scheme can improve signal to interference ratio (SIR) performance, thereby increasing system capacity significantly. Our results show that in a typical radio environment, the NBQC system with the ICA scheme can achieve reuse factor N = 2 with the 90 percentile of SIR as high as 11 dB, which represents 3 to 5 dB SIR improvement or about at least 40 percent system capacity improvement over current cellular networks.

Original language	American English
Pages	2719-2724
Number of pages	6
DOIs	https://doi.org/10.1109/GLOCOM.1999.831793
State	Published - 1999
Event	1999 IEEE Global Telecommunication Conference - GLOBECOM'99 - Rio de Janeiro, Braz Duration: 5 Dec 1999 → 9 Dec 1999

Conference

Conference	1999 IEEE Global Telecommunication Conference - GLOBECOM'99
City	Rio de Janeiro, Braz
Period	5/12/99 → 9/12/99

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10.1109/GLOCOM.1999.831793

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abstract = "In this paper, we propose an improved sectorization scheme for cellular networks, called Narrow Beam Quad-sector Cell (NBQC), in which each cell is divided into 4 sectors and each sector is covered by a 60° antenna. The NBQC architecture has better coverage performance than the current 3-sector cellular architecture. More importantly, the NBQC architecture allows easy implementation of the powerful interleaved channel assignment (ICA) scheme. Because of taking full advantage of antenna directivity, the NBQC architecture with the ICA scheme can improve signal to interference ratio (SIR) performance, thereby increasing system capacity significantly. Our results show that in a typical radio environment, the NBQC system with the ICA scheme can achieve reuse factor N = 2 with the 90 percentile of SIR as high as 11 dB, which represents 3 to 5 dB SIR improvement or about at least 40 percent system capacity improvement over current cellular networks.",

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year = "1999",

doi = "10.1109/GLOCOM.1999.831793",

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note = "1999 IEEE Global Telecommunication Conference - GLOBECOM'99 ; Conference date: 05-12-1999 Through 09-12-1999",

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T1 - Performance enhancement by narrow-beam quad-sector cell and interleaved channel assignment in wireless networks

AU - Wang, Li-Chun

AU - Leung, Kin K.

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AB - In this paper, we propose an improved sectorization scheme for cellular networks, called Narrow Beam Quad-sector Cell (NBQC), in which each cell is divided into 4 sectors and each sector is covered by a 60° antenna. The NBQC architecture has better coverage performance than the current 3-sector cellular architecture. More importantly, the NBQC architecture allows easy implementation of the powerful interleaved channel assignment (ICA) scheme. Because of taking full advantage of antenna directivity, the NBQC architecture with the ICA scheme can improve signal to interference ratio (SIR) performance, thereby increasing system capacity significantly. Our results show that in a typical radio environment, the NBQC system with the ICA scheme can achieve reuse factor N = 2 with the 90 percentile of SIR as high as 11 dB, which represents 3 to 5 dB SIR improvement or about at least 40 percent system capacity improvement over current cellular networks.

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Performance enhancement by narrow-beam quad-sector cell and interleaved channel assignment in wireless networks

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