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Nowadays, Wireless Local Loop (WLL) systems due to its advantages in comparison with Wire Systems has become one of the first choices in technologies. In this paper a WLL network is presented. The scenarios were created in OPNET modeler as simulation tool to obtain the results. The proposal is based on the OFDM and CDMA technique. Providing QoS requirements like good throughput and minimum access...
The success of emerging Broadband Wireless Access Systems (BWASs) will depend, among other factors, on their ability to manage their shared wireless resources in the most efficient way. This is a complex task due to the heterogeneous nature, and hence, diverse Quality of Service (QoS) requirements of different applications that these systems support. Therefore, QoS provisioning is crucial for the...
The provision of data services in 3G systems requires spectral efficiency solutions to increase the capacity of the radio access network as well as support for high data rates. In this context, the 3GPP introduces a new feature in the release 5 specifications denominated high speed downlink packet access (HSDPA). The HSDPA concept appears as an umbrella of features to improve both user and system...
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