SS-CDMA flexible wireless network: Approximately synchronized CDMA modem for uplink

S. Kameda; K. Takahashi; H. Nakase; K. Tsubouchi

SS-CDMA flexible wireless network: Approximately synchronized CDMA modem for uplink

S. Kameda, K. Takahashi, H. Nakase, K. Tsubouchi

Research output: Contribution to journal › Conference article › peer-review

Abstract

We have proposed an intracell uplink of a spread-spectrum code-division multiple-access (SS-CDMA) flexible wireless network based on approximately synchronized (AS) CDMA. Since the AS-CDMA has no co-channel interference, complicated transmission power control is not required. A modem of the AS-CDMA has been designed and implemented for the Japanese 2.4 GHz industrial, scientific and medical band. Using the implemented modem, the degradation of E_b/N₀ from the theoretical limit is 1.0 dB at a bit error rate (BER) of 10^-3. Under 2-user environment, the degradation of carrier-to-noise ratio from the case without undesired signal is 0.5 dB at a BER of 10^-3 when the desired-to-undesired signal ratio is -20.3 dB.

Original language	English
Pages (from-to)	3012-3016
Number of pages	5
Journal	IEEE International Conference on Communications
Volume	10
Publication status	Published - 2001 Jan 1
Event	International Conference on Communications (ICC2001) - Helsinki, Finland Duration: 2000 Jun 11 → 2000 Jun 14

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

Cite this

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title = "SS-CDMA flexible wireless network: Approximately synchronized CDMA modem for uplink",

abstract = "We have proposed an intracell uplink of a spread-spectrum code-division multiple-access (SS-CDMA) flexible wireless network based on approximately synchronized (AS) CDMA. Since the AS-CDMA has no co-channel interference, complicated transmission power control is not required. A modem of the AS-CDMA has been designed and implemented for the Japanese 2.4 GHz industrial, scientific and medical band. Using the implemented modem, the degradation of Eb/N0 from the theoretical limit is 1.0 dB at a bit error rate (BER) of 10-3. Under 2-user environment, the degradation of carrier-to-noise ratio from the case without undesired signal is 0.5 dB at a BER of 10-3 when the desired-to-undesired signal ratio is -20.3 dB.",

author = "S. Kameda and K. Takahashi and H. Nakase and K. Tsubouchi",

year = "2001",

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journal = "Conference Record - International Conference on Communications",

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note = "International Conference on Communications (ICC2001) ; Conference date: 11-06-2000 Through 14-06-2000",

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T1 - SS-CDMA flexible wireless network

T2 - International Conference on Communications (ICC2001)

AU - Kameda, S.

AU - Takahashi, K.

AU - Nakase, H.

AU - Tsubouchi, K.

PY - 2001/1/1

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N2 - We have proposed an intracell uplink of a spread-spectrum code-division multiple-access (SS-CDMA) flexible wireless network based on approximately synchronized (AS) CDMA. Since the AS-CDMA has no co-channel interference, complicated transmission power control is not required. A modem of the AS-CDMA has been designed and implemented for the Japanese 2.4 GHz industrial, scientific and medical band. Using the implemented modem, the degradation of Eb/N0 from the theoretical limit is 1.0 dB at a bit error rate (BER) of 10-3. Under 2-user environment, the degradation of carrier-to-noise ratio from the case without undesired signal is 0.5 dB at a BER of 10-3 when the desired-to-undesired signal ratio is -20.3 dB.

AB - We have proposed an intracell uplink of a spread-spectrum code-division multiple-access (SS-CDMA) flexible wireless network based on approximately synchronized (AS) CDMA. Since the AS-CDMA has no co-channel interference, complicated transmission power control is not required. A modem of the AS-CDMA has been designed and implemented for the Japanese 2.4 GHz industrial, scientific and medical band. Using the implemented modem, the degradation of Eb/N0 from the theoretical limit is 1.0 dB at a bit error rate (BER) of 10-3. Under 2-user environment, the degradation of carrier-to-noise ratio from the case without undesired signal is 0.5 dB at a BER of 10-3 when the desired-to-undesired signal ratio is -20.3 dB.

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SN - 0536-1486

Y2 - 11 June 2000 through 14 June 2000

ER -

SS-CDMA flexible wireless network: Approximately synchronized CDMA modem for uplink

Abstract

ASJC Scopus subject areas

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