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Location update and paging are important parts of location management of cellular network. This paper deals with a new algorithm to reduce paging cost using speed adaptive strategy. The proposed algorithm uses speed distribution and random walk model to develop look-up tables for mobile terminal. These tables are used to find out subarea size to be paged. Paging area is further reduced by introduction...
Overloading is a technique to accommodate more number of users than the spreading factor N. This is a bandwidth efficient scheme to increase the number users or data rate in a fixed bandwidth. These schemes can be used to avoid the orthogonal code shortage problem to provide broadband wireless access in cellular communication. One of the efficient schemes to overload a CDMA system is to use two sets...
Overloading is a scheme to accommodate more users than the spreading factor N. This is a bandwidth efficient scheme to increase the number of users in a fixed bandwidth. One of the efficient schemes to overload a CDMA system is to use two sets of orthogonal signal waveforms (O/O). The first set is assigned to the N users and the second set is assigned to the additional users. An iterative multistage...
Overloading is a technique to accommodate more users than the spreading factor N. This is a bandwidth efficient scheme to increase the number of users in a fixed bandwidth for mobile communication. One of the efficient schemes to overload a CDMA system is to use two sets of orthogonal signal waveforms (O/O). The first set is assigned to the N users and the second set is assigned to the additional...
Proliferated needs of the growing market regarding better data packet and voice services is looking to be met by deploying packet data services. This feature involves a complete upgrade of the network. The path to achieve this greatly differs between GSM and CDMA. networks. This paper gives an advanced comparison between the GSM and CDMA networks in the path to deploying packet data with essential...
Code division multiple access (CDMA) schemes have been considered as attractive multiple access schemes in the second-generation (2G), third-generation (3G) and future broadband wireless systems. Orthogonal codes are integral part of any broadband cellular systems. In this paper, we studied the performance of DS-CDMA signals with Walsh-Hadamard orthogonal codes, orthogonal gold codes and quadratic-residue...
Overloading is a technique to accommodate more number of users than the spreading factor N. This is a bandwidth efficient way to increase the number users in a fixed bandwidth. One of the efficient schemes to overload a CDMA system is to use two sets of orthogonal signal waveforms (O/O). The first set is assigned to the N users and the second set is assigned to the additional users. An iterative multistage...
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