JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives

The course objectives are:

• To provide the student with an understanding of the Cellular concept, Frequency reuse, Hand-off strategies.
• To enable the student to analyze and understand wireless and mobile cellular communication systems over a stochastic fading channel.
• To provide the student with an understanding of Co-channel and Non-Co-channel interferences.
• To give the student an understanding of cell coverage for signal and traffic, diversity techniques and mobile antennas.
• To give the student an understanding of frequency management, Channel assignment and types of handoff.

Course Outcomes

By the end of the course,

• The student will be able to analyze and design wireless and mobile cellular systems.
• The student will be able to understand impairments due to multipath fading channel.
• The student will be able understand the fundamental techniques to overcome the different fading effects.
• The student will be able to understand Co-channel and Non Co-channel interferences
• The student will be able to familiar with cell coverage for signal and traffic, diversity techniques and mobile antennas.
• The student will have an understanding of frequency management, Channel assignment, and types of handoff.

UNIT - I

Introduction to Cellular Mobile Radio Systems: Limitations of Conventional Mobile Telephone Systems, Basic Cellular Mobile System, First, Second, Third and Fourth Generation Cellular Wireless Systems, Uniqueness of Mobile Radio Environment- Fading - Time Dispersion Parameters, Coherence Bandwidth, Doppler Spread and Coherence Time. Fundamentals of Cellular Radio System Design: Concept of Frequency Reuse, Co- Channel Interference, Co-Channel Interference Reduction Factor, Desired C/I From a Normal Case in a Omni Directional Antenna System, System Capacity, Trunking and Grade of Service, Improving Coverage and Capacity in Cellular Systems- Cell Splitting, Sectoring, Microcell Zone Concept.

R16 B.TECH ETE

UNIT - II

Co-Channel Interference: Measurement Of Real Time Co-Channel Interference, Design of Antenna System, Antenna Parameters and Their Effects, Diversity Techniques-Space Diversity, Polarization Diversity, Frequency Diversity, Time Diversity. Non-Co-Channel Interference: Adjacent Channel Interference, Near End Far End Interference, Cross Talk, Effects on Coverage and Interference by Power Decrease, Antenna Height Decrease, Effects of Cell Site Components.

UNIT - III

Cell Coverage for Signal and Traffic: Signal Reflections in Flat And Hilly Terrain, Effect of Human Made Structures, Phase Difference Between Direct and Reflected Paths, Constant Standard Deviation, Straight Line Path Loss Slope, General Formula for Mobile Propagation Over Water and Flat Open Area, Near and Long Distance Propagation, Path Loss From a Point to Point Prediction Model in Different Conditions, Merits of Lee Model. Cell Site and Mobile Antennas: Space Diversity Antennas, Umbrella Pattern Antennas, Minimum Separation of Cell Site Antennas, Mobile Antennas.

UNIT - IV

Frequency Management and Channel Assignment: Numbering And Grouping, Setup Access And Paging Channels, Channel Assignments to Cell Sites and Mobile Units, Channel Sharing and Borrowing, Sectorization, Overlaid Cells, Non Fixed Channel Assignment.

UNIT - V

Handoffs and Dropped Calls: Handoff Initiation, Types of Handoff, Delaying Handoff, Advantages of Handoff, Power Difference Handoff, Forced Handoff, Mobile Assisted and Soft Handoff, Intersystem Handoff, Introduction to Dropped Call Rates and their Evaluation.

TEXT BOOKS:

• 1. Mobile Cellular Telecommunications – W.C.Y. Lee, Mc Graw Hill, 2nd Edn., 1989.
• 2. Wireless Communications - Theodore. S. Rapport, Pearson Education, 2nd Edn., 2002.
• 3. wireless communication and networks - Dalal, oxford university press

REFERENCE BOOKS:

• 1. Principles of Mobile Communications – Gordon L. Stuber, Springer International, 2nd Edn., 2001.
• 2. Modern Wireless Communications-Simon Haykin, Michael Moher, Pearson Education, 2005.
• 3. Wireless Communications Theory and Techniques, Asrar U. H .Sheikh, Springer, 2004.
• 4. Wireless Communications and Networking, Vijay Garg, Elsevier Publications, 2007.
• 5. Wireless Communications – Andrea Goldsmith, Cambridge University Press, 2005. R16 B.TECH ETE