A robust ranging detection with MAI cancellation for OFDMA systems

Chieh Lung Lin; Szu-Lin Su

A robust ranging detection with MAI cancellation for OFDMA systems

Chieh Lung Lin, Szu-Lin Su

Institute of Computer and Communication Engineering

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

14 Citations (Scopus)

Abstract

During the initial uplink synchronization, the BS communicates with MSs to adjust timing and power offsets. The common method to achieve the objective is to use the orthogonal code in the frequency domain for OFDMA systems. Due to the timing offset, the orthogonality of codes is decayed and multiple access interference (MAI) becomes serious. In order to decrease this influence, we proposed the idea which combines the channel estimation and the multiuser detection. On the strength of cancelling the MAI step by step, ranging users can be detected one by one. The proposed idea is robust to achieve a significant improvement on the ranging detection rate over the multipath Rayleigh fading channel.

Original language	English
Title of host publication	13th International Conference on Advanced Communication Technology
Subtitle of host publication	Smart Service Innovation through Mobile Interactivity, ICACT 2011, Proceeding
Pages	937-941
Number of pages	5
Publication status	Published - 2011
Event	13th International Conference on Advanced Communication Technology: Smart Service Innovation through Mobile Interactivity, ICACT 2011 - Gangwon-Do, Korea, Republic of Duration: 2011 Feb 13 → 2011 Feb 16

Other

Other	13th International Conference on Advanced Communication Technology: Smart Service Innovation through Mobile Interactivity, ICACT 2011
Country/Territory	Korea, Republic of
City	Gangwon-Do
Period	11-02-13 → 11-02-16

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Cite this

@inproceedings{24d7a46542964a6ebf1bc05834622601,

title = "A robust ranging detection with MAI cancellation for OFDMA systems",

abstract = "During the initial uplink synchronization, the BS communicates with MSs to adjust timing and power offsets. The common method to achieve the objective is to use the orthogonal code in the frequency domain for OFDMA systems. Due to the timing offset, the orthogonality of codes is decayed and multiple access interference (MAI) becomes serious. In order to decrease this influence, we proposed the idea which combines the channel estimation and the multiuser detection. On the strength of cancelling the MAI step by step, ranging users can be detected one by one. The proposed idea is robust to achieve a significant improvement on the ranging detection rate over the multipath Rayleigh fading channel.",

author = "Lin, {Chieh Lung} and Szu-Lin Su",

year = "2011",

language = "English",

isbn = "9788955191554",

pages = "937--941",

booktitle = "13th International Conference on Advanced Communication Technology",

note = "13th International Conference on Advanced Communication Technology: Smart Service Innovation through Mobile Interactivity, ICACT 2011 ; Conference date: 13-02-2011 Through 16-02-2011",

}

Lin, CL & Su, S-L 2011, A robust ranging detection with MAI cancellation for OFDMA systems. in 13th International Conference on Advanced Communication Technology: Smart Service Innovation through Mobile Interactivity, ICACT 2011, Proceeding. pp. 937-941, 13th International Conference on Advanced Communication Technology: Smart Service Innovation through Mobile Interactivity, ICACT 2011, Gangwon-Do, Korea, Republic of, 11-02-13.

TY - GEN

T1 - A robust ranging detection with MAI cancellation for OFDMA systems

AU - Lin, Chieh Lung

AU - Su, Szu-Lin

PY - 2011

Y1 - 2011

N2 - During the initial uplink synchronization, the BS communicates with MSs to adjust timing and power offsets. The common method to achieve the objective is to use the orthogonal code in the frequency domain for OFDMA systems. Due to the timing offset, the orthogonality of codes is decayed and multiple access interference (MAI) becomes serious. In order to decrease this influence, we proposed the idea which combines the channel estimation and the multiuser detection. On the strength of cancelling the MAI step by step, ranging users can be detected one by one. The proposed idea is robust to achieve a significant improvement on the ranging detection rate over the multipath Rayleigh fading channel.

AB - During the initial uplink synchronization, the BS communicates with MSs to adjust timing and power offsets. The common method to achieve the objective is to use the orthogonal code in the frequency domain for OFDMA systems. Due to the timing offset, the orthogonality of codes is decayed and multiple access interference (MAI) becomes serious. In order to decrease this influence, we proposed the idea which combines the channel estimation and the multiuser detection. On the strength of cancelling the MAI step by step, ranging users can be detected one by one. The proposed idea is robust to achieve a significant improvement on the ranging detection rate over the multipath Rayleigh fading channel.

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M3 - Conference contribution

AN - SCOPUS:79955700558

SN - 9788955191554

SP - 937

EP - 941

BT - 13th International Conference on Advanced Communication Technology

T2 - 13th International Conference on Advanced Communication Technology: Smart Service Innovation through Mobile Interactivity, ICACT 2011

Y2 - 13 February 2011 through 16 February 2011

ER -

A robust ranging detection with MAI cancellation for OFDMA systems

Abstract

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All Science Journal Classification (ASJC) codes

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