Time-domain spreading and frequency-domain spreading for delay-time/code division multi-access

Kazuki Takeda; Tetsuya Yamamoto; Fumiyuki Adachi

doi:10.1109/VETECS.2008.357

Time-domain spreading and frequency-domain spreading for delay-time/code division multi-access

Kazuki Takeda, Tetsuya Yamamoto, Fumiyuki Adachi

IRIDeS - Resilient EICT Research Promotion Office

Tohoku University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The uplink (mobile-to-base) bit error rate (BER) performance is significantly degraded due to the multi-access interference (MAI). Recently, we have proposed a new hybrid multi-access technique, called delay-time/code division multi-access (DT/CDMA). A different user is assigned a different cyclic time delay and/or spreading code. DT/CDMA can obtain the frequency diversity gain while suppressing the MAL. In the previous paper, time-domain spreading was considered. In this paper, we consider frequency-domain spreading and compare the achievable BER performances of DT/CDMA using time-domain spreading and frequency-domain spreading.

Original language	English
Title of host publication	2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Pages	1529-1533
Number of pages	5
DOIs	https://doi.org/10.1109/VETECS.2008.357
Publication status	Published - 2008
Event	2008 IEEE 67th Vehicular Technology Conference-Spring, VTC - Marina Bay, Singapore Duration: 2008 May 11 → 2008 May 14

Publication series

Name	IEEE Vehicular Technology Conference
ISSN (Print)	1550-2252

Conference

Conference	2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Country/Territory	Singapore
City	Marina Bay
Period	08/5/11 → 08/5/14

Keywords

Delay-time
Frequency-domain equalization
Multi-access

Access to Document

10.1109/VETECS.2008.357

Cite this

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title = "Time-domain spreading and frequency-domain spreading for delay-time/code division multi-access",

abstract = "The uplink (mobile-to-base) bit error rate (BER) performance is significantly degraded due to the multi-access interference (MAI). Recently, we have proposed a new hybrid multi-access technique, called delay-time/code division multi-access (DT/CDMA). A different user is assigned a different cyclic time delay and/or spreading code. DT/CDMA can obtain the frequency diversity gain while suppressing the MAL. In the previous paper, time-domain spreading was considered. In this paper, we consider frequency-domain spreading and compare the achievable BER performances of DT/CDMA using time-domain spreading and frequency-domain spreading.",

keywords = "Delay-time, Frequency-domain equalization, Multi-access",

author = "Kazuki Takeda and Tetsuya Yamamoto and Fumiyuki Adachi",

year = "2008",

doi = "10.1109/VETECS.2008.357",

language = "English",

isbn = "9781424416455",

series = "IEEE Vehicular Technology Conference",

pages = "1529--1533",

booktitle = "2008 IEEE 67th Vehicular Technology Conference-Spring, VTC",

note = "2008 IEEE 67th Vehicular Technology Conference-Spring, VTC ; Conference date: 11-05-2008 Through 14-05-2008",

}

Takeda, K, Yamamoto, T & Adachi, F 2008, Time-domain spreading and frequency-domain spreading for delay-time/code division multi-access. in 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC., 4525913, IEEE Vehicular Technology Conference, pp. 1529-1533, 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC, Marina Bay, Singapore, 08/5/11. https://doi.org/10.1109/VETECS.2008.357

Time-domain spreading and frequency-domain spreading for delay-time/code division multi-access. / Takeda, Kazuki; Yamamoto, Tetsuya; Adachi, Fumiyuki.
2008 IEEE 67th Vehicular Technology Conference-Spring, VTC. 2008. p. 1529-1533 4525913 (IEEE Vehicular Technology Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Time-domain spreading and frequency-domain spreading for delay-time/code division multi-access

AU - Takeda, Kazuki

AU - Yamamoto, Tetsuya

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N2 - The uplink (mobile-to-base) bit error rate (BER) performance is significantly degraded due to the multi-access interference (MAI). Recently, we have proposed a new hybrid multi-access technique, called delay-time/code division multi-access (DT/CDMA). A different user is assigned a different cyclic time delay and/or spreading code. DT/CDMA can obtain the frequency diversity gain while suppressing the MAL. In the previous paper, time-domain spreading was considered. In this paper, we consider frequency-domain spreading and compare the achievable BER performances of DT/CDMA using time-domain spreading and frequency-domain spreading.

AB - The uplink (mobile-to-base) bit error rate (BER) performance is significantly degraded due to the multi-access interference (MAI). Recently, we have proposed a new hybrid multi-access technique, called delay-time/code division multi-access (DT/CDMA). A different user is assigned a different cyclic time delay and/or spreading code. DT/CDMA can obtain the frequency diversity gain while suppressing the MAL. In the previous paper, time-domain spreading was considered. In this paper, we consider frequency-domain spreading and compare the achievable BER performances of DT/CDMA using time-domain spreading and frequency-domain spreading.

KW - Delay-time

KW - Frequency-domain equalization

KW - Multi-access

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BT - 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC

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ER -

Time-domain spreading and frequency-domain spreading for delay-time/code division multi-access

Abstract

Publication series

Conference

Keywords

Access to Document

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