Multiplexing and multiple access techniques ppt to pdf
File Name: multiplexing and multiple access techniques ppt to .zip
Multiplexing and Multiple Access
Abstract—To satisfy ever-increasing demands for higher data rates, as well as to allow more users to simultaneously access the network, interest has peaked in what has come to be known as wideband code division multiple access WCDMA. Whether your application is business, how-to, education, medicine, school, church, sales, marketing, online training or just for fun, PowerShow. CiteSeerX - Document Details Isaac Councill, Lee Giles, Pradeep Teregowda : Abstract—To satisfy ever-increasing demands for higher data rates, as well as to allow more users to simultaneously access the network, interest has peaked in what has come to be known as wideband code division multiple access WCDMA. W-CDMA is a third-generation mobile wireless technology that promises much higher data speeds to mobile and portable wireless devices than commonly offered in today's market. Manuel Prasanna.
wideband code division multiple access ppt
Multiple Access Techniques for Wireless Communication. Figure shows the idea behind TDMA. Cordless phones operating in the MHz, 2. Each station is allocated a time slot during which it can send data. That's all free as well!
Multiplexing and Multiple Access - Free download as Powerpoint Presentation .ppt), PDF File .pdf), Text File .txt) or view presentation slides.
Do you have PowerPoint slides to share? Figure shows the idea behind TDMA. This video will show working of CDMA technology with the help of animation. In CDMA every user receive a unique code known as chipping sequence. The receiver picks out each channel from the noise using the code.
code division multiple access ppt
Using different orthogonal codes, interference between the signals is minimal. Also recognized as Wideband Code Division Multiple Access, WCDMA is one of the principles used for air edge which is presented by mobile telecommunications networks that give 3G services to their customers and patrons. Code division multiple-access CDMA Space division multiple access SDMA Depending on how the available bandwidth is allocated to the users, these techniques can be classified as narrowband and wideband systems. Many of them are also animated. In wireless communication systems, it is often desirable to allow the subscriber to send information simultaneously from the mobile station to the base station while receiving information from the base station to the mobile station. A cellular system divides any given area into cells where a mobile unit in each cell communicates with a base station. If you are looking for a reviewer in Communications Engineering this will definitely help.
Code-division multiple access CDMA is a channel access method used by various radio communication technologies. CDMA is an example of multiple access , where several transmitters can send information simultaneously over a single communication channel. This allows several users to share a band of frequencies see bandwidth. To permit this without undue interference between the users, CDMA employs spread spectrum technology and a special coding scheme where each transmitter is assigned a code. CDMA is used as the access method in many mobile phone standards. The technology of code-division multiple access channels has long been known.