Abstract
In this paper, we propose a chip-level detection and a spectral-slice scheme for the tunable-transmitter/fixed-receiver (TTFR)-based asynchronous spectral phase-encoded optical code-division multiple-access (CDMA) system combined with time-encoding. The chip-level detection can enhance the tolerance of multiple access interference (MAI) because the channel collision does not occur as long as there is at least one weighted position without MAI. Moreover, the spectral-slice scheme can reduce the interference probability because the MAI with the different frequency has no adverse effects on the channel collision rate. As a result, these techniques mitigate channel collisions. We analyze the channel collision rate theoretically, and show that the proposed system can achieve a lower channel collision rate in comparison to both conventional systems with and without the time-encoding method.
| Original language | English |
|---|---|
| Pages (from-to) | 1-10 |
| Number of pages | 10 |
| Journal | Journal of Communications and Networks |
| Volume | 11 |
| Issue number | 1 |
| Publication status | Published - 2009 Feb |
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Keywords
- Channel collision
- Multiple access interference (MAI)
- Optical CDMA
- Spectral phase-encoding
- Tunable-transmitter/fixed-receiver (TTFR)
ASJC Scopus subject areas
- Computer Networks and Communications
- Information Systems
Cite this
Mitigation techniques of channel collisions in the TTFR-based asynchronous spectral phase-encoded optical CDMA system. / Miyazawa, Takaya; Sasase, Iwao.
In: Journal of Communications and Networks, Vol. 11, No. 1, 02.2009, p. 1-10.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Mitigation techniques of channel collisions in the TTFR-based asynchronous spectral phase-encoded optical CDMA system
AU - Miyazawa, Takaya
AU - Sasase, Iwao
PY - 2009/2
Y1 - 2009/2
N2 - In this paper, we propose a chip-level detection and a spectral-slice scheme for the tunable-transmitter/fixed-receiver (TTFR)-based asynchronous spectral phase-encoded optical code-division multiple-access (CDMA) system combined with time-encoding. The chip-level detection can enhance the tolerance of multiple access interference (MAI) because the channel collision does not occur as long as there is at least one weighted position without MAI. Moreover, the spectral-slice scheme can reduce the interference probability because the MAI with the different frequency has no adverse effects on the channel collision rate. As a result, these techniques mitigate channel collisions. We analyze the channel collision rate theoretically, and show that the proposed system can achieve a lower channel collision rate in comparison to both conventional systems with and without the time-encoding method.
AB - In this paper, we propose a chip-level detection and a spectral-slice scheme for the tunable-transmitter/fixed-receiver (TTFR)-based asynchronous spectral phase-encoded optical code-division multiple-access (CDMA) system combined with time-encoding. The chip-level detection can enhance the tolerance of multiple access interference (MAI) because the channel collision does not occur as long as there is at least one weighted position without MAI. Moreover, the spectral-slice scheme can reduce the interference probability because the MAI with the different frequency has no adverse effects on the channel collision rate. As a result, these techniques mitigate channel collisions. We analyze the channel collision rate theoretically, and show that the proposed system can achieve a lower channel collision rate in comparison to both conventional systems with and without the time-encoding method.
KW - Channel collision
KW - Multiple access interference (MAI)
KW - Optical CDMA
KW - Spectral phase-encoding
KW - Tunable-transmitter/fixed-receiver (TTFR)
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UR - http://www.scopus.com/inward/citedby.url?scp=62349113873&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:62349113873
VL - 11
SP - 1
EP - 10
JO - Journal of Communications and Networks
JF - Journal of Communications and Networks
SN - 1229-2370
IS - 1
ER -