INTRODUCTION TO RF PLANNING 1
• Designing a cellular system - particularly one that incorporates both Macrocellular and Microcellular networks is a delicate balanci...
Senin, 26 Desember 2011
Selasa, 13 September 2011
Introduction to Antenna
An antenna is an electrical conductor or system of conductors * Transmission - radiates electromagnetic energy into space ...
Senin, 18 Juli 2011
WCDMA Network Planning 3
Conditions for planning ** Conditions : • capacity not constant. • separate analysis for UL/DL. • joint coverage/capacity analysis. • HO are...
Rabu, 06 Juli 2011
WCDMA Network Planning 2
Planning methods • Preparation phase . – Defining coverage and capacity objectives. – Selection of network planning s...
Minggu, 19 Juni 2011
3G Security Principles 1
It was agreed that any new security architecture must be based on an evolution of GSM and must adopt four basic principles: It will tak...
Jumat, 20 Mei 2011
WCDMA Network Planning 1
Planning • Planning should meet current standards and demands and also comply with future requirements. • Uncertainty of future tr...
Kamis, 05 Mei 2011
MAC Layer in WiMAX IEEE 802.16
The MAC layer of IEEE 802.16 is designed to serve sparsely distributed stations with high data rates, where the SSs are not required to li...
Selasa, 03 Mei 2011
WiMAX IEEE 802.16 family
WiMAX IEEE 802.16 family :. • IEEE 802.16a: The standard specifies the operation from 2GHz to 11GHz, both licensed and license exempts. ...
Wireless Ad hoc Networks
Wireless ad hoc networks have special characteristics related to node mobility, node self-configuration and the lack of centralized access...
Minggu, 24 April 2011
LTE vs WiMAX : 4G Comparison
Both are 4G technologies designed to move data rather than voice. Both are IP networks based on OFDM (Orthogonal Frequency Division Multi...
LTE World summit 2011, 17-18 May 2011 at Amsterdam RAI
7th LTE World summit is schedule on 17-18 May 2011 at Amsterdam RAI. Features of this event will be : Now in its 7th Year! This is THE LTE ...
Rabu, 20 April 2011
4G LTE: MIMO and MRC
MIMO and MRC:- o LTE system uses MIMO (multiple input multiple output) as advanced multiple antenna technique in order to achieve the am...
Minggu, 17 April 2011
Intel Is Said to Design Phone for ZTE in China Market for Sale
Intel may be attempting to secure a spot for their mobile chips by first infiltrating the Chinese phone market. Their sources claim ...
Jumat, 15 April 2011
SC-FDMA (Single Carrier Freq Domain Multiple Access)
SC-FDMA (Single Carrier Freq Domain Multiple Access) used in Up-Link in LTE. o The system uses SC-FDMA as uplink multiple access method...
Kamis, 14 April 2011
JAJAH Facebook Calls for iPhone Beta released !
Following Tuesday’s release of the JAJAH App for Android, JAJAH Facebook Calls for iPhone beta released for iPhone Free Calls From iPho...
TELUS to launch 4G LTE in Canada in 1st H 2012
LTE technology supports manufacturer’s rated peak download speeds of up to 150 megabits per second (Mbps) and upload speeds of up to 70 ...
Rabu, 13 April 2011
Alcatel-Lucent and nTelos Wireless complete LTE field trial
Virginia-based nTelos Wireless and Alcatel-Lucent have accomplished an end-to-end Long Term Evolution (LTE) field trial in Waynesboro, V...
Infrax Systems (IFXY) Announces the Availability of New 1.4-1.6 GHz Upgradeable WiMAX / LTE Base Station for Rural Broadband Networks
Infrax Systems, Inc. (OTCBB: IFXY), a global provider of unified Smart Grid-related products and services for the Energy and Utility i...
Ericsson to support China Mobile's TD-LTE Trial Network in the City of Shenzhen
China Mobile has selected Ericsson to participate in the world’s largest TD-LTE trial network deployment to date. With the approval of th...
Epitiro tests TeliaSonera's LTE network performance
Epitiro has completed the independent speed, latency and voice quality-of-experience analysis on a commercially available LTE network. T...
Senin, 11 April 2011
4G LTE structure
LTE PHY layer block diagram:- We can implement LTE Physical layer Block diagram in Matlab . Frame structure: it is FDD frame which is 10ms ...
Minggu, 10 April 2011
4G LTE Key Features ( EPS to EPC)
EPS to EPC A key feature of the EPS is the separation of the network entity that performs control-plane functionality (MME) from the netw...
4G LTE Physical layer overview
What is LTE? 3GPP LTE (Long Term Evolution) is the name given to a project that aims to improve the UMTS mobile phone and it is not a st...
Kamis, 07 April 2011
Call Number Identification in GSM
If an adversary knows certain information (IMSI, IMEI, MSISDN) about the subscriber or a mobile phone, he can then identify individual ...
Authentication in GSM
The SIM card can be protected against unauthorised access with a four- to eight-digit P ersonal I dentification N umber ( PIN ). After...
Selasa, 05 April 2011
Samsung Galaxy Tab 10.1 3G info.
Samsung Galaxy Tab 10.1 3G tablet with no GSM voice communication capabilities. It supports GSM 850 / 900 / 1800 / 1900 & HSDPA 85...
Verizon iPhone 4 equally satisified
AT&T and Verizon iPhone 4 owners are more than twice as likely to report dropped calls than Verizon customers, says survey . Ta...
Sony CEO leak plans for 8MP iPhone 5 camera
Sony chief Sir Howard Stringer may have unintentionally given away plans for an eight-megapixel camera in the iPhone 5. During an interv...
Minggu, 03 April 2011
SS7 Basics
SS7 Protocol : The primary signaling protocol in use today is signaling systems 7(SS7), which interconnects networks such as SSP, SCP ....
IEEE approve next generation 802.16m WiMAX standard
The IEEE Standards Association has given its seal of approval to the next generation WiMAX standard, dubbed 802.16m . The new standard ...
Rabu, 30 Maret 2011
BlackBerry Touch (Monaco / Monza) hands-on -- New !
Boy Genius Report revealed a few leaked photos of the company’s latest evolution of a full touchscreen device, the BlackBerry Monaco / M...
Selasa, 29 Maret 2011
Sony Ericsson Xperia Play
Sony Ericsson announced via its blog today that the Xperia Play has gone on sale in 11 markets around the world. The world’s first PlayStati...
Selasa, 22 Maret 2011
Useful CEH v7 Info
CEH v7 Exam (312-50) Credit towards Certification Certified Ethical Hacker 7 Exam Details Number of Questions: 150 Passing Score: 70% Test D...
Jumat, 21 Januari 2011
PE license and exams
The PE exam tests your ability to practice competently in a particular engineering discipline. It is designed for engineers who have gained...
Fundamental WiMAX Concepts
WiMAX has four fundamental architectural components: Base Station (BS) : The BS is the node that logically connects wireless subsc...
Rabu, 19 Januari 2011
Turbo Code Applications 2
Terrestrial telephony: Turbo codes are suited for down-to-earth applications such as terrestrial telephony. Satellite technology pro...
Turbo Code Applications 1
Mobile radio: Few environments require more immunity to fading than those found in mobile communications. For applications where...
Motorola i886
The Motorola i886 is a very solid candybar phone coated in soft touch paint for a quality feel. It has a 2.2” QVGA display with 262K co...
Samsung C3530
Smartphones and big screen sizes are all the rage nowadays and even though they offer great functionality, there is still the casual u...
Nokia C3 Touch
This is a global GSM phone. It can be used with T-Mobile USA and AT&T . The design of the Nokia C3 Touch and Type borrows heav...
Selasa, 18 Januari 2011
Introduction to 802.11 Standard
IEEE 802.11 standard specifies a 2.4 GHz operating frequency with data rates of 1 and 2 Mbps using either Direct Sequence Spread Spectr...
Minggu, 16 Januari 2011
Basic commands and syntax in MATLAB
We will speak about Basic commands and syntax in MATLAB to show how we can write code in it . If you type in a valid expression and ...
Intro to MATLAB
MATLAB is a software package for computation in engineering, science, and applied mathematics. It offers a powerful programming languag...
Rabu, 12 Januari 2011
Intro to UMTS
UMTS (Universal Mobile Telecommunications Service) is a third-generation (3G) broadband, packet-based transmission of text, digitized...
What's OFDM-MIMO ?
Multiple Input Multiple Output (MIMO) One building block for next-generation wireless access, MIMO (multiple-input, multiple-output),...
OFDM Advantages and Disadvantages
The major advantage of OFDM is its robustness against multi path propagation. Thus, it is suitable to be implemented in wireless environ...
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