Abstract: Cloud computing is an innovative, emerging and a novel phenomenon that paves the way for provisioning of infinitely scalable, re-usable, multipurpose, flexible, cost-saving, efficient and customizable on-demand information technology services and products. The promise of cloud computing is to deliver all the functionality of existing information technology services (and in fact enable new functionalities that are hitherto infeasible) even as it dramatically reduces the upfront costs of computing that deter many organizations from deploying many cutting-edge IT services . All such promise has led to lofty expectations — Gartner Research expects cloud computing to be a $150 billion business by 2014, and according to AMI partners, small and medium businesses are expected to spend over $100 billion on cloud computing by 2014. One recent survey of six corporate data centers found that most of the servers were using just 10–30% of their available computing power.

• Publication Date: 03-Jun-2011
• DOI: 10.15224/978-981-07-1847-3-1027
• Views: 0
• Downloads: 0

Abstract: To improve coverage and performance in the CDMA as well as in MC-CDMA network, the simulation model and an evaluation method for the smart antenna system in the CDMA system is presented. Here the data service users as well as the voice services users are considered. The proposed method that can show the impact of smart antenna system on the Ec/Io coverage area and radius also presented as function of antenna type and beamwidth.The performance improvements are remarkable in the smart antenna systems. The performance of the system is evaluated in terms of Average Ec/Io, Area, Radius, Ec/Io Difference, Throughput with Number of users per sector. Both results are discussed based on various parameters like flat urban type morphology, Okumura Model for omni directional antennas air link, orthogonality factor and antenna beam width.

• Publication Date: 12-Mar-2012
• DOI: 10.15224/978-981-07-1847-3-726
• Views: 0
• Downloads: 0