منابع مشابه
A Framework for Uplink Power Control in Cellular Radio Systems
In cellular wireless communication systems, transmitted power is regulated to provide each user an acceptable connection by limiting the interference caused by other users. Several models have been considered including: (1) xed base station assignment where the assignment of users to base stations is xed, (2) minimum power assignment where a user is iteratively assigned to the base station at w...
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We have preciously introduced modulation and coding schemes that permit the simultaneous reception of a basic message stream by receivers with a wide range of capabilities and an additional message stream by more capable receivers. In a tactical military application, the basic message may represent a voice message, whale the additional message may correspond to a digitized image. In this paper ...
متن کاملUplink Scheduling in CDMA Packet-Data Systems
Uplink scheduling in wireless systems is gaining importance due to arising uplink intensive data services (ftp, image uploads etc.), which could be hampered by the currently in-built asymmetry in favor of the downlink. In this work, we propose and study algorithms for efficient uplink packet-data scheduling in a CDMA cell. The algorithms attempt to maximize system throughput under transmit powe...
متن کاملRadio Resource Management for Cellular CDMA Systems Supporting Heterogeneous Services
A novel radio resource management (RRM) scheme for the support of packet-switched transmission in cellular CDMA systems is proposed by jointly considering the physical, link, and network layer characteristics. The proposed resource management scheme is comprised of a combination of power distribution, rate allocation, service scheduling, and connection admission control. Power distribution allo...
متن کاملRadio Resource Allocation Schemes for Uplink and Downlink in Multimedia CDMA Systems
This paper presents the radio resource allocation schemes for uplink and downlink that are applicable to wireless multimedia CDMA system. Services such as the Internet often set different capacity requirements for the uplink and downlink. We compared applications of FDD, TDD, CDD schemes in this situation, and then studied TDD scheme as the candidate that is most flexible in resource allocation...
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ژورنال
عنوان ژورنال: IEEE Transactions on Vehicular Technology
سال: 2006
ISSN: 0018-9545
DOI: 10.1109/tvt.2006.874577