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Handover is the process of maintaining session Quality of Service (QoS) while the customer is changing radio access network point of attachment. Handover due to mobility, while seamlessly maintaining service continuity and QoS is one of the 3GPP standard requirements. Handover with in 2G/3G cellular networks has been successfully and widely deployed. However, deployment of new radio technologies in...
Employing complex scrambling code (CSC) would introduce quasi-orthogonal address code interference (QOACI) in QPSK I-Q sub-channel, resulting in the decrease of the communication capacity, presenting two ameliorated scrambling code schemes, then according to the simulation result, because of the more complicated constellations, the capacity would decline correspondingly.
Employing complex scrambling code (CSC) would introduce quasi-orthogonal address code interference (QOACI) in QPSK I-Q sub-channel, resulting in the decrease of the system capacity, presenting two ameliorated scrambling code schemes, then according to the simulation result, because of the complicated constellations, the system capacity would decline correspondingly.
This paper deals with the chip-level equalization technique for large area synchronized-code division multiple access (LAS CDMA) system communications. In the downlink of LAS CDMA, frequency-selective multi-path channel often destroys the orthogonality of spread codes at receivers between users and introduces inter-path interference (IPI), inter-symbol interference (ISI) and multi-path access interference...
More and more users subscribing to wireless broadband services are seeking to have access to both WLAN and UMTS networks. We study individually optimal user-network association in an integrated WLAN and UMTS hybrid cell. The association problem is formulated within a non-cooperative game framework. In the formulation, mobile arrivals are assumed to follow the Poisson process and each mobile considers...
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