JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Prerequisite

Wireless and Mobile Communications.

Course Objectives

The objectives of the course 4G Technologies are

• 1. To know about Second Generation, Third Generation Cellular technologies.
• 2. To study the Evolution Generation (2.5G) technology platforms.
• 3. To study various 4G technologies like OFDM, MC-CDMA etc.
• 4. To understand UWB wireless channels, channel modelling for micro, picocells.

Course Outcomes

At the end of the course, the students will be able to

• 1. Explain and compare Second and Third Generation technologies, their architectures.
• 2. Describe improved version of 2G technology i.e., evolution Generation(2.5G).
• 3. Define 4G technologies, their applications in modern wireless communication systems.
• 4. Evaluate the performance of OFDM system in fading environment.
• 5. Differentiate various hybrid multiple access schemes used in 4G systems.
• 6. Demonstrate the knowledge about UWB wireless channels.

UNIT - I

2G technology: Second Generation (2G): Overview, Enhancements over 1G Systems, Integration with Existing 1G Systems, GSM, IS-136 System Description, IS-95 System Description, iDEN (Integrated Dispatch Enhanced Network), CDPD. Third Generation (3G): Overview, Introduction, Universal Mobile Telecommunications Service (UMTS), UMTS Services, The UMTS Air Interface, Overview of the 3G PP Release 1999 Network Architecture, Overview of the 3GPP Release 4 Network Architecture, Overview of the 3G PP Release 5 All-IP Network Architecture, Overview CDMA 2000, TD- CDMA, TD-SCDMA, Commonality Between WCDMA, CDMA2000, TD-CDMA and TD- SCDMA.

UNIT - II

The Evolution Generation (2.5G): What Is 2.5G?, Enhancements over 2G, Technology Platforms, General Packet Radio Service, (GPRS), Enhanced Data Rates for Global Evolution (EDGE),High- Speed Circuit Switched Data (HSCSD), CDMA 2000 (1XRTT),WAP, SMS, Migration Path from 2G to 2.5G to 3G.

UNIT - III

4G Technology: Fundamentals of 4G, Advantages and Applications of 4G, Technology path, IMS, Convergent Devices, Advanced Broadband Wireless Access, Multimedia (Mobile TV), Business Requirements. OFDM: Timing and frequency offset in OFDM, Fading channel estimation for OFDM signals, Space-Time coding with OFDM signals, Layered Space-Time coding for MIMO OFDM, PAPR Reduction of OFDM signals.

UNIT - IV

MC-CDMA: Signal Structure, Downlink Signal, Uplink Signal, Spreading Techniques, Detection Techniques, Pre- Equalization, Combined Equalization, Soft Channel Decoding Flexibility in System design, Performance Analysis, MC-DS-CDMA, Signal Structure, Downlink Signal, Uplink Signal, Spreading, Detection Techniques, Performance Analysis.

R19 M.TECH. COMMUNICATION SYSTEMS

Hybrid Multiple Access Schemes: Orthogonal Frequency Division Multiple Access (OFDMA), Single - Carrier FDMA (SC-FDMA), OFDMA with Code Division Multiplexing (SS-MC-MA).

UNIT - V

UWB: Ultra-Wide Band Radio, The UWB channel, Coded UWB schemes, Multiuser detection in UWB radio, UWB with space–time processing. Channel Modelling and Measurements for 4G: Macrocellular environments (1.8 GHz), urban spatial radio channels in macro/microcell (2.154 GHz), MIMO channels in microcell and picocell environments (1.71/2.05 GHz), Outdoor mobile channel (5.3 GHz), Microcell channel (8.45 GHz), Wireless MIMO LAN environments (5.2GHz).

TEXT BOOKS:

• 1. Clint Smith, P.E., Daniel Collins, “3G Wireless Networks”, 2nd ed., McGraw-Hill, 2007.
• 2. Savo G. Glisic, “Advanced Wireless Communications: 4G Cognitive and Cooperative Broadband Technology”, 2nd ed., University of Oulu, Finland, John Wiley & Sons, Ltd, 2007.
• 3. K. Fazel, S. Kaiser, “Multi‐Carrier and Spread Spectrum Systems: From OFDM and MC‐CDMA to LTE and WiMAX”, 2nd ed., John Wiley & Sons, Ltd, 2008.

REFERENCE BOOKS:

• 1. Upena Dalal, “Wireless Communication”, Oxford University Press, 2009.
• 2. Simon R. Saunders, Alejandro Aragon-Zavala, “Antennas and Propagation for Wireless Communication Systems”, 2nded., 2008. R19 M.TECH. COMMUNICATION SYSTEMS M.TECH.- I YEAR- I SEMESTER COMMUNICATION SYSTEMS