EC-703 (A) · Cellular Mobile Communication/Official Syllabus
Cellular Mobile Communication (EC-703 (A)) - Official Syllabus
1
Unit 1
Introduction to cellular mobile system
- A basic cellular system
- performance criteria
- uniqueness of mobile radio environment
- operation of cellular systems
- planning of cellular system
- concept of frequency reuse channels
- co-channel interference reduction factor
- desired C/I in an omni-directional antenna system
- hand off mechanism
- cell splitting
- components of cellular systems
2
Unit 2
Cell coverage for signal and traffic
- mobile point-to-point model
- propagation over water or flat open area
- foliage loss
- propagation in near- in distance
- long distance propagation
- path loss from point-to-point prediction model
- cell site antenna heights and signal coverage cells
- mobile-to-mobile propagation
- Equivalent circuits of antennas
- gain and pattern relationship
- sum and difference patterns
- antennas at cell site
- mobile antennas
3
Unit 3
Cochannel interference reduction, Types of Noncochannel interference
- Cochannel interference
- real time cochannel interference measurement at mobile radio transceivers
- design of antenna systems - omni directional and directional
- lowering the antenna height
- reduction of cochannel interference
- umbrella- pattern effect
- diversity receiver
- Adjacent channel interference
- near-end-far-end interference
- cross-talk, effects of coverage and interference by applying power decrease, antenna height decrease, beam tilting
- effects of cell site components, interference between systems, UHF TV interference
- long distance interference
4
Unit 4
Frequency management and Channel Assignment, Handoffs and dropped calls
- Frequency management
- frequency spectrum utilization
- setup channels
- channel assignment, fixed channel assignment, non-fixed channel assignment algorithms
- additional spectrum, traffic and channel assignment, perception of call blocking from the subscribers
- Value of implementing handoffs, initiation of handoff, delaying a handoff
- forced handoff, queuing of handoff
- power- difference handoff, mobile assisted handoff and soft handoff
- cell-site handoff and intersystem handoff
- dropped call rate formula
5
Unit 5
Digital Cellular Systems
- GSM- architecture, layer modeling, transmission, GSM channels and channel modes, multiple access scheme
- CDMA- terms of CDMA systems, output power limits and control, modulation characteristics, call processing, hand off procedures
- Miscellaneous mobile systems- TDD systems, cordless phone, PDC, PCN, PCS, non cellular systems
Reference Books
- Cellular and Mobile Telecommunication- Analog & digital systems — Lee — TMH
- Wireless Communications- principles and practice — Rappaport
- Mobile communications design fundamentals — Lee — Wiley India
- Wireless Digital Communication — Faher Kamilo — PHI Learning
- Mobile Computing — Raj Kamal — Oxford University Press
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