### Abstract

This paper proposes a novel algorithm, named "Recursive vector Viterbi algorithm" applied for the multibeam interference cancellers. The proposed algorithm make it possible to reduce the computational complexity of the cancellers, ultimately. The basic idea of the algorithm is to divide the state transition of the vector Viterbi algorithm into the several steps, each of which corresponds to each beam in the multibeam. In spite of the division, the performance of the canceller based on the proposed algorithm scarcely degrades by virtue of assistance of the adaptive beam control implemented in the multibeam interference cancellers. Indeed, It is verified by computer simulation that 3-beam interference canceller has only 0.2dB performance degradation in 2-path Rayleigh fading channel in spite of one third of computational complexity compared with the conventional one.

Original language | English |
---|---|

Title of host publication | IEEE Vehicular Technology Conference |

Pages | 1890-1894 |

Number of pages | 5 |

Volume | 57 |

Edition | 3 |

Publication status | Published - 2003 |

Externally published | Yes |

Event | 57th IEEE Semiannual Vehicular Technology Conference (VTC2003) - Jeju, Korea, Republic of Duration: Apr 22 2003 → Apr 25 2003 |

### Other

Other | 57th IEEE Semiannual Vehicular Technology Conference (VTC2003) |
---|---|

Country | Korea, Republic of |

City | Jeju |

Period | 4/22/03 → 4/25/03 |

### Fingerprint

### Keywords

- Complexity reduction
- Interference canceller
- Mitltibeam
- Multiuser detection
- Viterbi algorithm

### ASJC Scopus subject areas

- Electrical and Electronic Engineering

### Cite this

*IEEE Vehicular Technology Conference*(3 ed., Vol. 57, pp. 1890-1894)

**Recursive vector Viterbi algorithm for multibeam interference cancellers.** / Denno, Satoshi.

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

*IEEE Vehicular Technology Conference.*3 edn, vol. 57, pp. 1890-1894, 57th IEEE Semiannual Vehicular Technology Conference (VTC2003), Jeju, Korea, Republic of, 4/22/03.

}

TY - GEN

T1 - Recursive vector Viterbi algorithm for multibeam interference cancellers

AU - Denno, Satoshi

PY - 2003

Y1 - 2003

N2 - This paper proposes a novel algorithm, named "Recursive vector Viterbi algorithm" applied for the multibeam interference cancellers. The proposed algorithm make it possible to reduce the computational complexity of the cancellers, ultimately. The basic idea of the algorithm is to divide the state transition of the vector Viterbi algorithm into the several steps, each of which corresponds to each beam in the multibeam. In spite of the division, the performance of the canceller based on the proposed algorithm scarcely degrades by virtue of assistance of the adaptive beam control implemented in the multibeam interference cancellers. Indeed, It is verified by computer simulation that 3-beam interference canceller has only 0.2dB performance degradation in 2-path Rayleigh fading channel in spite of one third of computational complexity compared with the conventional one.

AB - This paper proposes a novel algorithm, named "Recursive vector Viterbi algorithm" applied for the multibeam interference cancellers. The proposed algorithm make it possible to reduce the computational complexity of the cancellers, ultimately. The basic idea of the algorithm is to divide the state transition of the vector Viterbi algorithm into the several steps, each of which corresponds to each beam in the multibeam. In spite of the division, the performance of the canceller based on the proposed algorithm scarcely degrades by virtue of assistance of the adaptive beam control implemented in the multibeam interference cancellers. Indeed, It is verified by computer simulation that 3-beam interference canceller has only 0.2dB performance degradation in 2-path Rayleigh fading channel in spite of one third of computational complexity compared with the conventional one.

KW - Complexity reduction

KW - Interference canceller

KW - Mitltibeam

KW - Multiuser detection

KW - Viterbi algorithm

UR - http://www.scopus.com/inward/record.url?scp=0041467839&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0041467839&partnerID=8YFLogxK

M3 - Conference contribution

VL - 57

SP - 1890

EP - 1894

BT - IEEE Vehicular Technology Conference

ER -