상세정보
학술지
An Efficient Negative Acknowledgment Method for CDMA-Based Ranging in IEEE 802.16 OFDMA Systems
- 발행일
- 201001
- 출처
- IEEE Communications Letters, v.14 no.1, pp.15-17
- ISSN
- 1089-7798
- 출판사
- IEEE
- 협약과제
- 09MR7200, IMT-Advanced 기반 개방형 WiBro 플랫폼 기술 개발, 박윤옥
- 초록
- Ranging in IEEE 802.16 systems is used to synchronize an uplink or to request an uplink bandwidth. The base station sends a ranging response message as a positive acknowledgment of a successfully received code. However, the base station does not provide a negative acknowledgment; hence, a mobile station is unable to determine if its ranging code is unsuccessfully transmitted. This paper proposes a negative acknowledgment method based on a ranging slot indicator and the frame number of a ranging response message. The results of the performance analysis show that the proposed method can reduce the delay of a code retransmission. © 2010 IEEE.
- KSP 제안 키워드
- IEEE 802.16, Mobile station(MS), OFDMA systems, Performance analysis, base station(BS)