TITLE

Why digital matters

AUTHOR(S)
SCHASSLER, BOB
PUB. DATE
March 2011
SOURCE
Urgent Communications;Mar2011, Vol. 29 Issue 3, p10
SOURCE TYPE
Trade Publication
DOC. TYPE
Article
ABSTRACT
This article discusses the technology behind digital mobile radios and their advantages over the old two-way analog radios designed only to transmit voice. In addition to providing users with useful tools and data transmission capabilities, digital radios have longer battery life and enhanced voice quality. Two primary digital radio technologies are available in the land-mobile radio (LMR) market, namely, the Time-Division Multiple-Access (TDMA) and the Frequency-Division Multiple-Access (FDMA).
ACCESSION #
59414384

 

Related Articles

  • Next-gen cellular bid gives second chance for M-TDMA and PHS.  // Telecom Asia;Oct2006, Vol. 17 Issue 10, p14 

    The article reports that five Japanese companies and the Ministry of Posts and Telecommunications said that they have jointly developed a transmitter based on multimedia time division multiple access (M-TDMA) technology for next-gen mobile. M-TDMA device was flexible enough to handle voice...

  • Performance of Random Diagonal Codes for Spectral Amplitude Coding Optical CDMA Systems. Fadhil, Hilal A.; Aljunid, Syed A.; Ahmed, R. Badlishah // Proceedings of World Academy of Science: Engineering & Technolog;Jun2008, Vol. 42, p764 

    In this paper we study the use of a new code called Random Diagonal (RD) code for Spectral Amplitude Coding (SAC) optical Code Division Multiple Access (CDMA) networks, using Fiber Bragg-Grating (FBG), FBG consists of a fiber segment whose index of reflection varies periodically along its...

  • Revolutionary Technology Choice. Smith, Brad // Wireless Week;4/1/2007, Vol. 13 Issue 7, p41 

    The article states that wideband-code division multiple access (W-CDMA) operators face a decision on which technology to use in the future. The Global Suppliers Association (GSA) claims that 145 operators in 66 countries around the world have committed to adding the high-speed downlink packet...

  • Secure wireless networks for industrial applications. Forgue, Bruno // Process & Control Engineering (PACE);Jun2004, Vol. 57 Issue 5, p23 

    Focuses on the use of frequency hopping spread spectrum radio technology in industries. Advantages in terms of security, immunity to electromagnetic interference, robustness and network reliability; Principles of operation.

  • A Robustness Analysis of Game-Theoretic CDMA Power Control. Fan, Xingzhe; Arcak, Murat; Wen, John T. // Turkish Journal of Electrical Engineering & Computer Sciences;2004, Vol. 12 Issue 3, p139 

    This paper studies robustness of a gradient-type CDMA uplink power control algorithm with respect to disturbances and time-delays. This problem is of practical importance because unmodeled secondary interference effects from neighboring cells play the role of disturbances, and propagation delays...

  • How Project 25 two-slot TDMA works. McClellan III, W. Roy // Mobile Radio Technology;Jan2008, Vol. 26 Issue 1, p30 

    The article offers technical overview of the proposed solution for Project 25 Phase 2 time division multiple access (TDMA). It is said that the proposed solution will develop standards proposals for consideration by the Telecommunication Industry Association (TIA) TR8 Land Mobile Radio (LMR)...

  • TD-SCDMA Receiver Captures Multiple Channels. Ling Tian; Zhengbo Jiang; Jin Liu; Wie Hong // Microwaves & RF;Jul2009, Vol. 48 Issue 7, p53 

    The article features the time-division synchronous code-division-multiple-access (TD-SCDMA) receiver. Its flexible design allows for a wide range of applications in multicarrier, diversity-receiver systems. The receiver works with multiple active antenna modules and a digital...

  • Performance Comparison of Spreading Codes in Linear Multi-User Detectors for DS-CDMA System. RAVINDRABABU, J.; KRISHNA RAO, E. V. // WSEAS Transactions on Communications;Feb2013, Vol. 12 Issue 2, p52 

    Direct Sequence Code Division Multiple Access (DS-CDMA) system is well known wireless technology. This system suffers from MAI (Multiple Access Interference) caused by Direct Sequence users. Multi-User Detection schemes were introduced to detect the users' data in presence of MAI. Linear...

  • Hybrid Dynamic Channel Assignment in Clustered Wireless Multihop CDMA/TDMA Ad Hoc Networks. Chien-Min Wu // Wireless Personal Communications;Jul2007, Vol. 42 Issue 1, p85 

    Abstract  A good channel assignment scheme in a multihop ad hoc network should not only guarantee successful data transmissions without collisions, but also enhance the channel spatial reuse to maximize the system throughput. It becomes very inefficient to use fixed channel...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics