Error probability bounds analysis of JMLSE based interference cancellation algorithms for MQAM-OFDM systems

Zhenyu Zhou, Takuro Sato

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Due to the reuse factor reduction, the same frequencies are reused in adjacent neighboring cells, which causes an attendant increase in co-channel interference (CCI). CCI has already become the limiting factor in the performance of orthogonal frequency division multiplexing (OFDM) based cellular systems. Joint maximum likelihood sequence estimation (JMLSE) based interference cancellation algorithms have been under intense research. However, despite the fact that the error probability of JMLSE is critical for analyzing the performance, to the best of our knowledge, the mathematical expression has not been derived for MQAM-OFDM yet. Direct computation of the error probability involves integrating a multi-dimensional Gaussian distribution that has no closed-form solution. Therefore, an alternative way is to upper and lower bound the error probability with computable quantities. In this paper, firstly, both the upper and the conventional lower error probability bounds of JMLSE are derived for MQAM-OFDM systems based on a genie-aided receiver. Secondly, in order to reduce the gap between the conventional lower bound and the simulation results, a tighter lower bound is derived by replacing the genie with a less generous one. Thirdly, those derived error probability bounds are generalized to the receiver diversity scheme. These error probability bounds are important new analytical results that can be used to provide rapid and accurate estimation of the BER performance over any MQAM scheme and an arbitrary number of interferers and receive antennas.

    Original languageEnglish
    Pages (from-to)2032-2042
    Number of pages11
    JournalIEICE Transactions on Communications
    VolumeE94-B
    Issue number7
    DOIs
    Publication statusPublished - 2011 Jul

    Fingerprint

    Orthogonal frequency division multiplexing
    Maximum likelihood
    Gaussian distribution
    Error probability
    Antennas

    Keywords

    • Co-channel interference
    • Error probability bound
    • Genie-aided receiver
    • JMLSE
    • MQAM-OFDM
    • Receiver diversity

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Computer Networks and Communications
    • Software

    Cite this

    Error probability bounds analysis of JMLSE based interference cancellation algorithms for MQAM-OFDM systems. / Zhou, Zhenyu; Sato, Takuro.

    In: IEICE Transactions on Communications, Vol. E94-B, No. 7, 07.2011, p. 2032-2042.

    Research output: Contribution to journalArticle

    @article{54a631ceac88484b9748390f17fd49ca,
    title = "Error probability bounds analysis of JMLSE based interference cancellation algorithms for MQAM-OFDM systems",
    abstract = "Due to the reuse factor reduction, the same frequencies are reused in adjacent neighboring cells, which causes an attendant increase in co-channel interference (CCI). CCI has already become the limiting factor in the performance of orthogonal frequency division multiplexing (OFDM) based cellular systems. Joint maximum likelihood sequence estimation (JMLSE) based interference cancellation algorithms have been under intense research. However, despite the fact that the error probability of JMLSE is critical for analyzing the performance, to the best of our knowledge, the mathematical expression has not been derived for MQAM-OFDM yet. Direct computation of the error probability involves integrating a multi-dimensional Gaussian distribution that has no closed-form solution. Therefore, an alternative way is to upper and lower bound the error probability with computable quantities. In this paper, firstly, both the upper and the conventional lower error probability bounds of JMLSE are derived for MQAM-OFDM systems based on a genie-aided receiver. Secondly, in order to reduce the gap between the conventional lower bound and the simulation results, a tighter lower bound is derived by replacing the genie with a less generous one. Thirdly, those derived error probability bounds are generalized to the receiver diversity scheme. These error probability bounds are important new analytical results that can be used to provide rapid and accurate estimation of the BER performance over any MQAM scheme and an arbitrary number of interferers and receive antennas.",
    keywords = "Co-channel interference, Error probability bound, Genie-aided receiver, JMLSE, MQAM-OFDM, Receiver diversity",
    author = "Zhenyu Zhou and Takuro Sato",
    year = "2011",
    month = "7",
    doi = "10.1587/transcom.E94.B.2032",
    language = "English",
    volume = "E94-B",
    pages = "2032--2042",
    journal = "IEICE Transactions on Communications",
    issn = "0916-8516",
    publisher = "Maruzen Co., Ltd/Maruzen Kabushikikaisha",
    number = "7",

    }

    TY - JOUR

    T1 - Error probability bounds analysis of JMLSE based interference cancellation algorithms for MQAM-OFDM systems

    AU - Zhou, Zhenyu

    AU - Sato, Takuro

    PY - 2011/7

    Y1 - 2011/7

    N2 - Due to the reuse factor reduction, the same frequencies are reused in adjacent neighboring cells, which causes an attendant increase in co-channel interference (CCI). CCI has already become the limiting factor in the performance of orthogonal frequency division multiplexing (OFDM) based cellular systems. Joint maximum likelihood sequence estimation (JMLSE) based interference cancellation algorithms have been under intense research. However, despite the fact that the error probability of JMLSE is critical for analyzing the performance, to the best of our knowledge, the mathematical expression has not been derived for MQAM-OFDM yet. Direct computation of the error probability involves integrating a multi-dimensional Gaussian distribution that has no closed-form solution. Therefore, an alternative way is to upper and lower bound the error probability with computable quantities. In this paper, firstly, both the upper and the conventional lower error probability bounds of JMLSE are derived for MQAM-OFDM systems based on a genie-aided receiver. Secondly, in order to reduce the gap between the conventional lower bound and the simulation results, a tighter lower bound is derived by replacing the genie with a less generous one. Thirdly, those derived error probability bounds are generalized to the receiver diversity scheme. These error probability bounds are important new analytical results that can be used to provide rapid and accurate estimation of the BER performance over any MQAM scheme and an arbitrary number of interferers and receive antennas.

    AB - Due to the reuse factor reduction, the same frequencies are reused in adjacent neighboring cells, which causes an attendant increase in co-channel interference (CCI). CCI has already become the limiting factor in the performance of orthogonal frequency division multiplexing (OFDM) based cellular systems. Joint maximum likelihood sequence estimation (JMLSE) based interference cancellation algorithms have been under intense research. However, despite the fact that the error probability of JMLSE is critical for analyzing the performance, to the best of our knowledge, the mathematical expression has not been derived for MQAM-OFDM yet. Direct computation of the error probability involves integrating a multi-dimensional Gaussian distribution that has no closed-form solution. Therefore, an alternative way is to upper and lower bound the error probability with computable quantities. In this paper, firstly, both the upper and the conventional lower error probability bounds of JMLSE are derived for MQAM-OFDM systems based on a genie-aided receiver. Secondly, in order to reduce the gap between the conventional lower bound and the simulation results, a tighter lower bound is derived by replacing the genie with a less generous one. Thirdly, those derived error probability bounds are generalized to the receiver diversity scheme. These error probability bounds are important new analytical results that can be used to provide rapid and accurate estimation of the BER performance over any MQAM scheme and an arbitrary number of interferers and receive antennas.

    KW - Co-channel interference

    KW - Error probability bound

    KW - Genie-aided receiver

    KW - JMLSE

    KW - MQAM-OFDM

    KW - Receiver diversity

    UR - http://www.scopus.com/inward/record.url?scp=79959927203&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=79959927203&partnerID=8YFLogxK

    U2 - 10.1587/transcom.E94.B.2032

    DO - 10.1587/transcom.E94.B.2032

    M3 - Article

    AN - SCOPUS:79959927203

    VL - E94-B

    SP - 2032

    EP - 2042

    JO - IEICE Transactions on Communications

    JF - IEICE Transactions on Communications

    SN - 0916-8516

    IS - 7

    ER -