Wireless bandwidth

Large bandwidth penalty since the subcarriers can’t have perfectly rectangular pulse shapes and still be time-limited. Very high quality (expensive) low pass filters will be required to maintain the orthogonality of the subcarriers at the receiver.

27p nhq_khtn 07-11-2013 53 3   Download

Guided - wire Unguided - wireless Characteristics and quality determined by medium and signal For guided, the medium is more important For unguided, the bandwidth produced by the antenna is more important Key concerns are data rate and distance

27p trada85 18-01-2013 62 6   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Adaptive Bandwidth Management and Joint Call Admission Control to Enhance System Utilization and QoS in Heterogeneous Wireless Networks

11p sting10 07-03-2012 47 4   Download

WAP, Wireless Application Protocol aims to provide Internet content and advanced telephony services to digital mobile phones, pagers and other wireless terminals. The protocol family works across different wireless network environments and makes web pages visible on low-resolution and low-bandwidth devices.

5p thachnq 03-06-2011 130 21   Download

Protocols for wireless applications Wireless data networks present a more constrained communication environment compared to wired networks. Because of fundamental limitations of power, available spectrum, and mobility, wireless data networks tend to have less bandwidth than traditional networks, more latency than traditional networks, less connection stability than other network technologies, and less predictable availability.

19p huggoo 20-08-2010 81 8   Download

In the maze of wireless networking developments, the one factor often overlooked is the promised throughput capabilities versus the actual bandwidth that is available. Picking up an 802.11g wireless access point and wireless adaptor, you probably expect that you will be getting a bandwidth availability of 54mb-per-second (mbps). Oops. Don’t get too upset when you find out that the actual bandwidth you get is substantially lower. In this paper you will learn why the bandwidth you expect disappears into thin air....

8p duypha 06-08-2009 91 16   Download

The requirements for a network administrator have always been diverse. Get the users connected, make sure there’s enough bandwidth to run applications, keep the network secure, and so on. When problems come up on a traditional network, the solutions have often been fairly straightforward. If users aren’t connected, you connect them. If there’s not enough bandwidth, you buy new equipment. If network resources are vulnerable, you introduce appliances and applications that provide enhanced security. It’s a pretty tight loop of problems and solutions....

11p huyhoang 06-08-2009 1457 17   Download