A hierarchical TDD microcell/FDD macrocell CDMA system using antenna arrays and power ratio adjustments

Chiung Jang Chen; Li-Chun Wang

doi:10.1109/GLOCOM.2002.1188539

A hierarchical TDD microcell/FDD macrocell CDMA system using antenna arrays and power ratio adjustments

Chiung Jang Chen^*, Li-Chun Wang

^*Corresponding author for this work

Department of Electrical and Computer Engineering

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

1 Scopus citations

Abstract

In this paper, we present a new hierarchical cell system with an underlaid TDD/CDMA microcell and overlaying FDD/CDMA macrocells. With an objective to exploit the underutilized FDD uplink capacity due to traffic asymmetry, the TDD/CDMA mircocell is operated within the uplink frequency band of the overlaying FDD/CDMA macrocells. By jointly applying the proposed antenna arrays at the cell site and a new power ratio adjustment technique, we evaluate the outage probabilities of the macrocell and the microcell. From the simulation results, we demonstrate that the full capacity of the TDD/CDMA mircocell can be obtained without degrading the performance of FDD/CDMA marcocells.

Original language	English
Pages	1945-1949
Number of pages	5
DOIs	https://doi.org/10.1109/GLOCOM.2002.1188539
State	Published - 17 Dec 2002
Event	GLOBECOM'02 - IEEE Global Telecommunications Conference - Taipei, Taiwan Duration: 17 Nov 2002 → 21 Nov 2002

Conference

Conference	GLOBECOM'02 - IEEE Global Telecommunications Conference
Country/Territory	Taiwan
City	Taipei
Period	17/11/02 → 21/11/02

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10.1109/GLOCOM.2002.1188539

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title = "A hierarchical TDD microcell/FDD macrocell CDMA system using antenna arrays and power ratio adjustments",

abstract = "In this paper, we present a new hierarchical cell system with an underlaid TDD/CDMA microcell and overlaying FDD/CDMA macrocells. With an objective to exploit the underutilized FDD uplink capacity due to traffic asymmetry, the TDD/CDMA mircocell is operated within the uplink frequency band of the overlaying FDD/CDMA macrocells. By jointly applying the proposed antenna arrays at the cell site and a new power ratio adjustment technique, we evaluate the outage probabilities of the macrocell and the microcell. From the simulation results, we demonstrate that the full capacity of the TDD/CDMA mircocell can be obtained without degrading the performance of FDD/CDMA marcocells.",

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N2 - In this paper, we present a new hierarchical cell system with an underlaid TDD/CDMA microcell and overlaying FDD/CDMA macrocells. With an objective to exploit the underutilized FDD uplink capacity due to traffic asymmetry, the TDD/CDMA mircocell is operated within the uplink frequency band of the overlaying FDD/CDMA macrocells. By jointly applying the proposed antenna arrays at the cell site and a new power ratio adjustment technique, we evaluate the outage probabilities of the macrocell and the microcell. From the simulation results, we demonstrate that the full capacity of the TDD/CDMA mircocell can be obtained without degrading the performance of FDD/CDMA marcocells.

AB - In this paper, we present a new hierarchical cell system with an underlaid TDD/CDMA microcell and overlaying FDD/CDMA macrocells. With an objective to exploit the underutilized FDD uplink capacity due to traffic asymmetry, the TDD/CDMA mircocell is operated within the uplink frequency band of the overlaying FDD/CDMA macrocells. By jointly applying the proposed antenna arrays at the cell site and a new power ratio adjustment technique, we evaluate the outage probabilities of the macrocell and the microcell. From the simulation results, we demonstrate that the full capacity of the TDD/CDMA mircocell can be obtained without degrading the performance of FDD/CDMA marcocells.

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A hierarchical TDD microcell/FDD macrocell CDMA system using antenna arrays and power ratio adjustments

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