상세정보
학술지
Effect of Cell Shape on Design of CDMA Systems for Urban Microcells
- 저자
- 민승욱, H.M. El-Sallabi, H.L. Bertoni
- 발행일
- 200610
- 출처
- IEEE Transactions on Wireless Communications, v.5 no.10, pp.2805-2813
- ISSN
- 1536-1276
- 출판사
- IEEE
- 협약과제
- 06MM2400, 200Mbps급 IEEE 802.11n 모뎀 및 RF 칩셋 개발, 이석규
- 초록
- Placing antennas of low power base stations below surrounding buildings, as in urban microcells, makes propagation characteristics strongly dependent on the building environment. As a result, propagation in these urban microcells is non-isotropic, so that the assumption of circular cells used in planning of conventional cellular systems is no longer valid. Assuming circular cells leads to a more conservative system design, implying more base stations. This work investigates the effect of cell shape, due to non-isotropic propagation, on the out-of-cell interference and Erlang capacity of CDMA system. Propagation is described by measurement derived models for low antennas in a rectangular urban street grid. The analysis is done for soft handoff protocols. © 2006 IEEE.
- KSP 제안 키워드
- Building environment, CDMA systems, Cellular system, Conservative system, Erlang capacity, Handoff protocols, Low-Power, Propagation characteristics, Urban street, base station(BS), cell shape