Browsing The Library by Subject "Wireless communication systems"
Now showing items 1-17 of 17
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Authenticated collaborative key agreement for dynamic peer groups
(Universiti Malaysia Perlis, 2009-10-11)Many emerging network applications are based upon a group communication model. In a peer-to-peer or adhoc network which do not have a previously agreed upon common secret key, communication is susceptible to eavesdropping, ... -
A certain investigations on the performance issues of smart antennas for cellular mobile communications
(Universiti Malaysia Perlis, 2009-10-11)Adaptive antenna arrays are being developed to cope with the high capacity requirement of the 3G/4G wireless cellular communications systems. As adaptive antenna arrays focus narrow high gain beams towards the desired users ... -
Design of reconfigurable antenna arrray for WLAN and WIMAX application
(Universiti Malaysia Perlis, 2009-10-11)In this paper we have presented the use of reconfigurable microstrip patch antenna elements in adaptive arrays. The combination of both reconfigurability and adaptivity in a single array is investigated. As the different ... -
DiGi and TDC to sign definitive accord on 3G spectrum
(The Star, 2008-01-25) -
DiGi to invest RM600m in 3G Network in first half of 2008
(New Straits Times, 2007-11-30) -
The effects of MAC protocols on ad hoc on-demand distance vector (AODV) routing protocol
(Kolej Universiti Kejuruteraan Utara Malaysia, 2005-05-18)Ad hoc networks play an important role in mobile radio networks due to its flexibility and low operation cost. Several of key research issues of ad hoc network are on the routing and MAC algorithms. But, only a few of ... -
Industri permainan, 3G dan WiMAX tawar hasil lumayan
(Berita Harian, 2005-04-13) -
Miniaturization and broadbanding techniques for folded meander line microstrip antennas
(Institute of Electrical and Electronics Engineering (IEEE), 2009)In this paper a Folded Meander Line Antenna (FMLA) had been designed to operate in WLAN b/g band. Fabricated on a FR-4 board for single layer prototype and RO3010 for two layers prototype. The design of this antenna is ... -
Mobile content to cash in more
(New Straits Times, 2007-11-15) -
On reducing the effects of clipping in an enhanced Orthogonal Frequency Division Multiplexing system
(Kolej Universiti Kejuruteraan Utara Malaysia, 2005-05-18)Orthogonal frequency division multiplexing (OFDM) is a communication technique that divides a communication channel into a number of equally spaced frequency bands. One major problem, which degrades the OFDM performance, ... -
An overview of TCP analysis over routing protocols in wireless mesh network
(Institute of Electrical and Electronics Engineering (IEEE), 2008)Wireless Mesh Network (WMN) has gained popularities due to its quick and inexpensive ways to access to the Internet. While the traditional wireless network uses single access point for data transmission, WMN uses multiple ... -
Ovi portal for Nokia users
(New Straits Times, 2007-09-06) -
Power-limited spectral amplitude coding OCDMA system using random diagonal code with and without optical amplifiers
(Institute of Electrical and Electronics Engineering (IEEE), 2008)A new code structure for spectral amplitude coding in optical code division multiple access (OCDMA) systems called Random Diagonal (RD) code is proposed. RD code is constructed using code level and data level. One of the ... -
Secure data communication for mobile Ad Hoc Network using Zonal Routing Protocol
(Universiti Malaysia Perlis, 2009-10-11)Mobile ad hoc network is a special kind of wireless networks. It is a collection of mobile nodes without having aid of establish infrastructure. In Mobile Ad hoc network, it is much more vulnerable to attacks than a wired ... -
Security and scalability of MANET routing protocols in homogeneous & heterogeneous networks
(Universiti Malaysia Perlis, 2009-10-11)A Mobile Ad-Hoc Network (MANET) is a collection of wireless mobile nodes forming a temporary network without using any centralized access point, infrastructure, or centralized administration. During data transmission ... -
Study of integration 2.4GHz and 5.8GHz in RFID tag
(Universiti Malaysia Perlis, 2009-10-11)The most common, though not the only frequencies generally available for RFID use are LF (nominally 132 kHz), HF (13.56 MHz), UHF (860 - 960 MHz) and microwave (2.45 GHz and 5.8 GHz). Wireless LAN systems based on the ... -
Unite in celebration with Merdeka cheer ringtone
(New Straits Times, 2007-08-31)