지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.8 No.3
- 발행연도
- 2013.5
- 수록면
- 638 - 648 (11page)
이용수
초록· 키워드
오류제보하기
Together with the GPS-based approach, geo-location through mobile communication networks is a key technology for location-based service. To save the cost, most geo-location system is implemented on the existed network service, which has a cellular structure. Still, multilateration is limited in cellular structure because it is difficult for the mobile terminal to acquire distance measurements from multiple base stations. This low hearability in the receiver is caused by co-channel interference and multipath environment. Therefore, hearability enhancement is necessary for multilateration under multipath and interference environment. Former time domain based hearability methods were designed for real signals. However, orthogonal frequency division multiplexing (OFDM) signal, which its usage has been increased in digital wireless communication, is a complex signal. Thus, different hearability enhancement method is needed for OFDM signals. This paper proposes a hearability enhancement method for forward-link multilateration using OFDM signals, which employ interference cancellation and multipath mitigation. A novel interference cancellation and multipath mitigation strategy for complex-valued OFDM signals is presented that has an iterative structure. Simulation results show that the proposed multilateration method provides the user’s position with an accuracy of less than 80m through the mobile WiMAX cellular network in multipath environment.
목차
Abstract
1. Introduction
2. Enhancement of Hearability in Geo-location Using OFDM Signal
3. Simulation
4. Conclusion
References
참고문헌 (29)
참고문헌 신청
1. [단행본] - F. V. Diggelen / 2009 / A-GPS: Assisted GPS, GNSS, and SBAS / Artech House
2. [단행본] - P. Misra. / 2006 / Global Positioning System, Signals, Measurements, and Performance, 2nd edition / Ganga-Jamuna Press : 67 ~ 90
3. [단행본] - E. D. Kaplan. / 2006 / Understanding GPS Principles and Applications, 2nd edition / Artech House : 459 ~ 630
4. [단행본] - J. J. Caffery Jr. / 1999 / Wireless Location In CDMA Cellular Radio System / Kluwer Academic Publishers : 23 ~ 40
5. [단행본] - A. Bensky / 2008 / Wireless Positioning Technologies and Applications / Artech House
2. [단행본] - P. Misra. / 2006 / Global Positioning System, Signals, Measurements, and Performance, 2nd edition / Ganga-Jamuna Press : 67 ~ 90
3. [단행본] - E. D. Kaplan. / 2006 / Understanding GPS Principles and Applications, 2nd edition / Artech House : 459 ~ 630
4. [단행본] - J. J. Caffery Jr. / 1999 / Wireless Location In CDMA Cellular Radio System / Kluwer Academic Publishers : 23 ~ 40
5. [단행본] - A. Bensky / 2008 / Wireless Positioning Technologies and Applications / Artech House
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