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dc.contributor.authorWang, LCen_US
dc.contributor.authorLiao, CYen_US
dc.contributor.authorChang, CJen_US
dc.date.accessioned2014-12-08T15:26:25Z-
dc.date.available2014-12-08T15:26:25Z-
dc.date.issued2002en_US
dc.identifier.isbn0-7803-7632-3en_US
dc.identifier.urihttp://hdl.handle.net/11536/18753-
dc.description.abstractHandover in heterogeneous cellular networks is one of the hottest topics for the wireless networks beyond the third generation. This paper presents a new downlink soft handover algorithm to solve the serious "power exhausting" problem during the traditional handover process in heterogeneous cellular systems. The power exhausting problem occurs when in the traditional handover process, the serving base stations usually adopt the equal power allocation (EPA) strategy for different sizes of cells. Thus we propose a constrained unequal power allocation (CUPA) technique to serve handover users by taking account of the effects of different cell sizes and shadowing. Compared to the EPA method, our simulation results show that the proposed soft handover algorithm combining with the CUPA technique can improve total system capacity by 5% in a homogeneous cellular system, and 73% in a heterogeneous cellular system.en_US
dc.language.isoen_USen_US
dc.titleDownlink soft handover and power allocation for CDMA heterogeneous cellular networksen_US
dc.typeProceedings Paperen_US
dc.identifier.journalGLOBECOM'02: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-3, CONFERENCE RECORDS: THE WORLD CONVERGESen_US
dc.citation.spage1830en_US
dc.citation.epage1834en_US
dc.contributor.department電信工程研究所zh_TW
dc.contributor.departmentInstitute of Communications Engineeringen_US
dc.identifier.wosnumberWOS:000182118500362-
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