Adaptive internally turbo-coded ultra wideband-impulse radio (AITC-UWB-IR) system

Naotake Yamamoto, Tomoaki Ohtsuki

研究成果: Conference contribution

25 引用 (Scopus)

抄録

As a new spread spectrum system, an Ultra Wideband-Impulse Radio (UWB-IR) has attracted much attention in high speed indoor multiple access radio communications [1]. Since the UWB-IR system repeats and transmits pulses for each bit, the UWB-IR system is considered as a coded scheme with a simple repetition block code. As an error correcting code, Turbo-codes proposed by C. Berrou et al. in 1993 [2] have attracted much attention beyond the field of coding theory, because the performance is very close to the Shannon limit with practical decoding complexity. In this paper, we propose an adaptive internally Turbo-coded UWB-IR (AITC-UWB-IR) system. The proposed system employs a Turbo code in addition to a repetition block code and shares the transmission bandwidth adaptively between them. We evaluate the performance of the AITC-UWB-IR by theoretical analysis and computer simulation. From our numerical and simulation results, we show that the BER of the AITC-UWB-IR is superior to that of the SOC-UWB-IR on an AWGN channel when the bit rate is high We also showed that the AITC-UWB-IR system using low rate Turbo codes improves the BER on an AWGN channel and a real Gaussian fading channel. Consequently, we confirm that for the same bit rate, we had better make the code rate of Turbo codes lower and make the number of repetitions of the repetition codes smaller to achieve the better BER.

元の言語English
ホスト出版物のタイトルIEEE International Conference on Communications
ページ3535-3539
ページ数5
5
出版物ステータスPublished - 2003
外部発表Yes
イベント2003 International Conference on Communications (ICC 2003) - Anchorage, AK, United States
継続期間: 2003 5 112003 5 15

Other

Other2003 International Conference on Communications (ICC 2003)
United States
Anchorage, AK
期間03/5/1103/5/15

Fingerprint

Radio systems
Ultra-wideband (UWB)
Turbo codes
Block codes
Radio communication
Fading channels
Decoding
Bandwidth
Computer simulation

ASJC Scopus subject areas

  • Media Technology

これを引用

Yamamoto, N., & Ohtsuki, T. (2003). Adaptive internally turbo-coded ultra wideband-impulse radio (AITC-UWB-IR) system. : IEEE International Conference on Communications (巻 5, pp. 3535-3539)

Adaptive internally turbo-coded ultra wideband-impulse radio (AITC-UWB-IR) system. / Yamamoto, Naotake; Ohtsuki, Tomoaki.

IEEE International Conference on Communications. 巻 5 2003. p. 3535-3539.

研究成果: Conference contribution

Yamamoto, N & Ohtsuki, T 2003, Adaptive internally turbo-coded ultra wideband-impulse radio (AITC-UWB-IR) system. : IEEE International Conference on Communications. 巻. 5, pp. 3535-3539, 2003 International Conference on Communications (ICC 2003), Anchorage, AK, United States, 03/5/11.
Yamamoto N, Ohtsuki T. Adaptive internally turbo-coded ultra wideband-impulse radio (AITC-UWB-IR) system. : IEEE International Conference on Communications. 巻 5. 2003. p. 3535-3539
Yamamoto, Naotake ; Ohtsuki, Tomoaki. / Adaptive internally turbo-coded ultra wideband-impulse radio (AITC-UWB-IR) system. IEEE International Conference on Communications. 巻 5 2003. pp. 3535-3539
@inproceedings{8ab0bffb1d7148bb9dd467a22a63513d,
title = "Adaptive internally turbo-coded ultra wideband-impulse radio (AITC-UWB-IR) system",
abstract = "As a new spread spectrum system, an Ultra Wideband-Impulse Radio (UWB-IR) has attracted much attention in high speed indoor multiple access radio communications [1]. Since the UWB-IR system repeats and transmits pulses for each bit, the UWB-IR system is considered as a coded scheme with a simple repetition block code. As an error correcting code, Turbo-codes proposed by C. Berrou et al. in 1993 [2] have attracted much attention beyond the field of coding theory, because the performance is very close to the Shannon limit with practical decoding complexity. In this paper, we propose an adaptive internally Turbo-coded UWB-IR (AITC-UWB-IR) system. The proposed system employs a Turbo code in addition to a repetition block code and shares the transmission bandwidth adaptively between them. We evaluate the performance of the AITC-UWB-IR by theoretical analysis and computer simulation. From our numerical and simulation results, we show that the BER of the AITC-UWB-IR is superior to that of the SOC-UWB-IR on an AWGN channel when the bit rate is high We also showed that the AITC-UWB-IR system using low rate Turbo codes improves the BER on an AWGN channel and a real Gaussian fading channel. Consequently, we confirm that for the same bit rate, we had better make the code rate of Turbo codes lower and make the number of repetitions of the repetition codes smaller to achieve the better BER.",
author = "Naotake Yamamoto and Tomoaki Ohtsuki",
year = "2003",
language = "English",
volume = "5",
pages = "3535--3539",
booktitle = "IEEE International Conference on Communications",

}

TY - GEN

T1 - Adaptive internally turbo-coded ultra wideband-impulse radio (AITC-UWB-IR) system

AU - Yamamoto, Naotake

AU - Ohtsuki, Tomoaki

PY - 2003

Y1 - 2003

N2 - As a new spread spectrum system, an Ultra Wideband-Impulse Radio (UWB-IR) has attracted much attention in high speed indoor multiple access radio communications [1]. Since the UWB-IR system repeats and transmits pulses for each bit, the UWB-IR system is considered as a coded scheme with a simple repetition block code. As an error correcting code, Turbo-codes proposed by C. Berrou et al. in 1993 [2] have attracted much attention beyond the field of coding theory, because the performance is very close to the Shannon limit with practical decoding complexity. In this paper, we propose an adaptive internally Turbo-coded UWB-IR (AITC-UWB-IR) system. The proposed system employs a Turbo code in addition to a repetition block code and shares the transmission bandwidth adaptively between them. We evaluate the performance of the AITC-UWB-IR by theoretical analysis and computer simulation. From our numerical and simulation results, we show that the BER of the AITC-UWB-IR is superior to that of the SOC-UWB-IR on an AWGN channel when the bit rate is high We also showed that the AITC-UWB-IR system using low rate Turbo codes improves the BER on an AWGN channel and a real Gaussian fading channel. Consequently, we confirm that for the same bit rate, we had better make the code rate of Turbo codes lower and make the number of repetitions of the repetition codes smaller to achieve the better BER.

AB - As a new spread spectrum system, an Ultra Wideband-Impulse Radio (UWB-IR) has attracted much attention in high speed indoor multiple access radio communications [1]. Since the UWB-IR system repeats and transmits pulses for each bit, the UWB-IR system is considered as a coded scheme with a simple repetition block code. As an error correcting code, Turbo-codes proposed by C. Berrou et al. in 1993 [2] have attracted much attention beyond the field of coding theory, because the performance is very close to the Shannon limit with practical decoding complexity. In this paper, we propose an adaptive internally Turbo-coded UWB-IR (AITC-UWB-IR) system. The proposed system employs a Turbo code in addition to a repetition block code and shares the transmission bandwidth adaptively between them. We evaluate the performance of the AITC-UWB-IR by theoretical analysis and computer simulation. From our numerical and simulation results, we show that the BER of the AITC-UWB-IR is superior to that of the SOC-UWB-IR on an AWGN channel when the bit rate is high We also showed that the AITC-UWB-IR system using low rate Turbo codes improves the BER on an AWGN channel and a real Gaussian fading channel. Consequently, we confirm that for the same bit rate, we had better make the code rate of Turbo codes lower and make the number of repetitions of the repetition codes smaller to achieve the better BER.

UR - http://www.scopus.com/inward/record.url?scp=0037591070&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037591070&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0037591070

VL - 5

SP - 3535

EP - 3539

BT - IEEE International Conference on Communications

ER -