Broadband Wireless Multiple Access MethodsLaajuus (3 ECTS)

Objective

After completing the course the student knows the characteristics of radio network multiple access methods and the basics of spread spectrum systems and signal processing in transmitter and receiver. The student understands the principles of different CDMA techniques and their implementations. The student knows the operation of the OFDM system and multicarrier use and signals orthogonality significance for transmission capacity.

Content

Radio network multiple access principles, basics for spread spectrum technique (SS), CDMA systems, DS-CDMA, FH-CDMA, TH-CDMA, WCDMA, MC-CDMA, spread spectrum system architecture, transmitter and receiver structures, basics for OFDM technique.
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3G evolution systems (LTE), spread spectrum applications, OFDM applications, FLASH-OFDM, UWB technique, MIMO systems and applications.

Assessment criteria, satisfactory (1)

The student is able to identify:
The main internet services that can be accessed through a GPRS Network
The GPRS network elements and their main functionalities
The standardized interfaces between the elements
The classes of mobile stations
The differences between circuit switched data and packet switched data difference in GPRS Radio network
What is needed to deploy GPRS on top of an existing GSM

Assessment criteria, good (3)

The student is able to explain
The concept of charging and billing and their relationship
Mobility Management
Session Management
The basic data transaction process
How/when/what system resources are reserved and released
The concept of roaming in mobile data services
The main functions of the GPRS specific protocols
What happens to an IP packet on the way from a server to a mobile station
How/where the data is protected and retransmitted if needed and where/how/why the data flow is controlled

Assessment criteria, excellent (5)

The student is able to present architectures for different spread spectrum systems and to determine basic parameter values for them. The student has the skills to evaluate radio link performance especially from a point of view of noise, radio path effects and the receiver dynamic range. The student is able to explain different receiver types and basics for wideband RF unit design.