상세정보
학술지
Acquisition performance improvement by Barker sequence repetition in a preamble for DS-CDMA systems with symbol-length spreading codes
- 발행일
- 200301
- 출처
- IEEE Transactions on Vehicular Technology, v.52 no.1, pp.127-131
- ISSN
- 0018-9545
- 출판사
- IEEE
- 협약과제
- 01MR3300, Ka대역 위성멀티미디어 지구국 핵심기술개발, 이호진
- 초록
- We investigate the effect on code acquisition performance of using Barker sequence repetition in a preamble for direct-sequence code-division multiple-access systems with symbol-length spreading codes. To do so, we first introduce the properties of repeated Barker sequences; then, using those properties, we derive the false alarm and detection probabilities for the acquisition system with Barker sequence repetition. Some numerical examples show that the acquisition performance of a system using Barker sequence repetition is better than that of a system not using Barker sequence repetition. Also, the performance improvement by use of Barker sequence repetition is shown to be greater with a longer period of the Barker sequence.
- KSP 제안 키워드
- Acquisition system, Barker sequences, CDMA systems, Code Acquisition, Code division Multiple Access(CDMA), Detection probability, Direct-sequence(DS), Direct-sequence code-division multiple-access(DS-CDMA), False Alarm, Numerical examples, acquisition performance