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| ECE 3&2 Cellular Mobile communications | ||
|---|---|---|
| S.No | Chapters / Units | Download Link |
| 1 | Unit 1 | Download |
| 2 | Unit 2 | Download |
| 3 | Unit 3 | Download |
| 4 | Unit 4 | Download |
| 5 | Unit 5&6 | Download/ Download |
ECE 3&2 Cellular Mobile communications Important Topics
UNIT I
CELLULAR MOBILE RADIO SYSTEMS: Introduction to Cellular Mobile System,
uniqueness of mobile radio environment, operation of cellular systems, consideration of the
components of Cellular system, Hexagonal shaped cells, Analog and Digital Cellular
systems.
CELLULAR CONCEPTS: Evolution of Cellular systems, Concept of frequency reuse,
frequency reuse ratio, Number of channels in a cellular system, Cellular traffic: trunking and
blocking, Grade of Service; Cellular structures: macro, micro, pico and femto cells; Cell
splitting, Cell sectoring.
UNIT II
INTERFERENCE: Types of interferences, Introduction to Co-Channel Interference, real
time Co-Channel interference, Co-Channel measurement, Co-channel Interference Reduction
Factor, desired C/I from a normal case in a omni-directional Antenna system, design of
Antenna system, antenna parameters and their effects, diversity receiver, non-co-channel
interference-different types.
UNIT III
FREQUENCY MANAGEMENT AND CHANNEL ASSIGNMENT: Numbering and
grouping, setup access and paging channels, channel assignments to cell sites and mobile
units: fixed channel and non-fixed channel assignment, channel sharing and borrowing,
overlaid cells. 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, straight line path loss slope, general formula for mobile propagation over
water and flat open
area, near and long distance propagation, antenna height gain, form of a point to point model.
UNIT IV
HANDOFF STRATEGIES:
Concept of Handoff, types of handoff, handoff initiation, delaying handoff, forced handoff,
mobile assigned handoff, intersystem handoff, soft and hard hand offs, vehicle locating
methods, dropped call rates and their evaluation.
UNIT V
DIGITAL CELLULAR NETWORKS: GSM architecture, GSM channels, multiple access
schemes; TDMA, CDMA, OFDMA.3G and 4G Wireless Standards GSM , GPRS , WCDMA
, LTE , Wi-MAX, Introduction to 5G standards.
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