Wireless Networks
Journal Title: International journal of Emerging Trends in Science and Technology - Year 2014, Vol 1, Issue 2
Abstract
The arrival of wireless technology has reduced the human efforts for accessing data at various locations by replacing wired infrastructure with wireless infrastructure and also providing access to devices having mobility .Since wireless devices need to be small and bandwidth constrained, some of the key challenges in wireless networks are Signal fading, mobility, data rate enhancements, minimizing size and cost, user security and (Quality of service) QoS. Speaking of Wireless LAN, the general thought is about data transfer while using applications such as web browser, e-mail client, etc. As the technology is advancing, Wireless LANs are now also capable of supporting time-sensitive services such as voice and video. These services have stringent service requirements from the network infrastructure. These requirements supersede the requirements of general data. The wireless industry is undergoing a change. We see the evolution from cellular 2G to 3G standards, the migration from circuit to packet applications, and the procession of voice to data. We also see the industry incorporating new wireless access technologies such as WiFi and WiMAX. All of this is happening in a market place where voice subscriber penetration levels in many parts of the world are saturating and there is incredible pressure to reduce network capital and operating costs. These conditions present signicant technology challenges to increase customer demand and further increase network capacity to lower network costs .This paper is intended to provide the reader with an overview of the Research Issues and Challenges in wireless networks.
Authors and Affiliations
Kimmi Makkar
Keywords
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