Fundamentals of Wireless Communication

... an inefficient utilization of the available degrees of freedom in the system: bits 47 are packed into smaller number of dimensions instead of spreading into larger number of dimensions as in the ... |h[2]| 2 d[2] 2 between the received codewords to be of the order of 1/SNR. This event holds roughly when both |h[1]| 2 d[1] 2 and |h[2]| 2 d[2] 2 are of the order of 1/SNR, and th...

Ngày tải lên: 20/10/2013, 07:15

... development of models of several heights for men, women, and chil- dren of various ages for use in the characterization of SAR distributions for exposures characteristic of cell phones, wireless ... development of models of several heights for men, women, and children of various ages for use in the characterization of SAR distributions for exposures characteristic of...

Ngày tải lên: 15/03/2014, 15:20

... VirginiaKeywords: Fading, Mobile Radio Propagation, Wireless CommunicationsCopyright 2000, Gregory D. Durgin THEORY OF STOCHASTIC LOCAL AREA CHANNELMODELING FOR WIRELESS COMMUNICATIONSGregory D. Durgin(ABSTRACT)This ... result from conquering the wireless channel.However, given the emergence of newer wireless systems that require more and more band-width, the task of conquering...

Ngày tải lên: 20/11/2012, 11:36

... comprehensive treatment of WiMAX. It should be of great interest. —Dr. Reinaldo Valenzuela, Director of Wireless Research, Bell Labs Fundamentals of WiMAX is a comprehensive guide to WiMAX from ... Transactions on Communications Fundamentals of WiMAX is a comprehensive examination of the 802.16/WiMAX standard and discusses how to design, develop, and deploy equipment for thi...

Ngày tải lên: 27/04/2013, 08:58

... 2 Wireless Communications Principles and Fundamentals 2.1 Introduction Wireless networks, as the name suggests, utilize wireless transmission for exchange of information. The exact form of wireless ... 2.3.1 The Physics of Propagation An important issue in wireless communications is of course the amount of information that can be carried over a wireless channel, in ter...

Ngày tải lên: 29/09/2013, 21:20

... handoff is initiated and completed by the network. The execution time is on the order of 1 s. 1.2.7.4 Hard Handoff and Soft Handoff Handoff may be classified into hard handoff and soft handoff. ... Yip Handbook of Multisensor Data Fusion David Hall and James Llinas Handbook of Antennas in Wireless Communications Lal Chand Godara Forthcoming Titles Propagation Data Handbook for Wir...

Ngày tải lên: 18/04/2014, 11:02

... anywhere 28 The Wireless Landscape 29 The Wireless Landscape (continued) 3 How Wireless Technology is Used • Wireless – Describes devices and technologies that are not connected by a wire • Wireless communications – Transmission ... the roof of each building – Transmission speeds • 75 Mbps at distances of up to 4 miles (6.4 km) • 17 to 50 Mbps at distances over 6 miles (10 km)...

Ngày tải lên: 13/09/2012, 10:52

... Wireless Communications Radio Frequency Identification 10 RFID System Components (continued) • RFID tags (continued) – Smart labels (continued) • Can be read regardless of their position ... materials that reflect a portion of the reader’s signal back 11 RFID System Components (continued) • RFID tags (continued) – Sensory tags • Can be equipped with various kinds of sensors to monit...

Ngày tải lên: 13/09/2012, 10:52

... to invest in wireless technology 2 Objectives • List the advantages of wireless communications for businesses • Discuss the challenges of wireless communications 3 Advantages of Wireless Technology • Basic ... Wireless Communications Wireless Communications in Business 10 Challenges of Using Wireless Technology • Challenges include: – Competing technologies – Data se...

Ngày tải lên: 13/09/2012, 11:16