P1 · 83547 (May 2025)
P2 · 55392
P3 · 68142 (Dec 2024)
P4 · 39858 (Dec 2023)
P5 · 28390
P6 · 93653 (Summer 2022 MCQ)
P7 · 13720 (Dec 2022)
89283 / Mobile Computing
01
Introduction to Mobile Computing
1.1 Introduction · Telecommunication Generations · Cellular Systems
1.2 Electromagnetic Spectrum · Antenna · Signal Propagation · Signal Characteristics · Multiplexing · Spread Spectrum (DSSS & FHSS) · Co-channel Interference
1.2 Electromagnetic Spectrum · Antenna · Signal Propagation · Signal Characteristics · Multiplexing · Spread Spectrum (DSSS & FHSS) · Co-channel Interference
4 HRS
1.1 · Mobile Computing Intro, Generations & Cellular Systems
Why is the size of the cells kept smaller in a Cellular network? Explain.
Explain the concept of frequency reuse with clustering.
Explain concept of frequency reuse with clustering. (P7: Compare various Telecommunication Generations.)
Compare all Mobile Generations i.e. 1G, 2G, 3G, 4G and 5G.
What are various Mobile Communication and Application Environments for: i) Business ii) Location Based Services iii) Banking Services iv) Vehicles?
Explain the need of Mobile Communication in various areas.
What are various day-to-day services that are enhanced with the existence of Mobile Communication? Discuss at least 2 such services in detail.
1.2 · Antenna, Signal Propagation, Spread Spectrum
Explain various Types of Antennas along with their Radiation Pattern.
Explain different types of Antenna used in mobile communication. (P6 MCQ: Smart Antenna / Sectored Antenna concepts.)
Explain Signal Propagation in detail. What are various Signal Propagation Effects?
What is Spread Spectrum? What are the various advantages for the same? Why is it used? Explain any one of the spread spectrum techniques.
Explain DSSS and FHSS in detail.
What are the Advantages and Disadvantages of Small Cells in a Cellular system?
What is co-channel interference?
Two or more antennas combined to improve reception by counteracting negative effects of multi-path propagation are termed as:
A) Multi-element antenna array B) Smart Antenna C) Sectored antenna D) Isotropic Radiator
02
GSM Mobile Services
2.1 GSM Mobile Services · System Architecture · Radio Interface · Protocols · Localization & Calling · Handover · Security (A3, A5 & A8)
2.2 GPRS System and Protocol Architecture
2.3 UTRAN · UMTS Core Network · Improvements on Core Network
2.2 GPRS System and Protocol Architecture
2.3 UTRAN · UMTS Core Network · Improvements on Core Network
8 HRS
2.1 · GSM Architecture, Calling & Handover
Draw the neat sketch of the GSM System Architecture. Explain each unit of GSM in detail.
Explain in detail GSM System Architecture and describe the function of each block.
What is the use of different interfaces used in GSM with appropriate diagram?
What is the use of different interfaces used in Global System for Mobile Communication (GSM) with diagram?
What are the roles of EIR and HLR entities in a GSM network?
Discuss about the mobile services and data services in GSM.
Explain in detail Mobile Terminated Call and Mobile Originated Call.
What happens when a Mobile Node shifts from one region to another? Explain various Handover Mechanisms in GSM. Why is it necessary to have Handover Mechanism?
Explain A3, A5 and A8 algorithm in detail. List various Security Services offered by GSM. (P3: Explain GSM Authentication.)
Which of the following stores the User Related Data that is also relevant to GSM Mobile Systems?
A) VLR B) HMR C) GMR D) SIM
2.2 · GPRS Architecture
Explain the GPRS Architecture. Explain each unit/block in detail. Draw a neat sketch.
Which components are new in GPRS as compared to GSM? What is their purpose?
2.3 · UMTS Architecture
Explain UMTS Architecture.
UTRAN stands for:
A) Universal Transmission Radio Networks B) Universal Terrestrial Radio Access Network C) Unified Transmission Area Network D) Universal Time Radio Access Network
03
Mobile Networking
3.1 Medium Access Protocol · Internet Protocol and Transport Layer
3.2 Mobile IP: IP Packet Delivery · Agent Advertisement & Discovery · Registration · Tunneling & Encapsulation · Reverse Tunneling
3.3 Mobile TCP: Traditional TCP · Classical TCP Improvements · Indirect TCP · Snooping TCP & Mobile TCP · Fast Retransmit/Recovery · Transmission/Timeout Freezing · Selective Retransmission
3.2 Mobile IP: IP Packet Delivery · Agent Advertisement & Discovery · Registration · Tunneling & Encapsulation · Reverse Tunneling
3.3 Mobile TCP: Traditional TCP · Classical TCP Improvements · Indirect TCP · Snooping TCP & Mobile TCP · Fast Retransmit/Recovery · Transmission/Timeout Freezing · Selective Retransmission
8 HRS
3.2 · Mobile IP — Packet Delivery, Registration, Tunneling
Explain IP Packet Delivery to and from Mobile Node with a neat sketch / Mobile IP Network Diagram. How is packet delivery achieved?
Explain the mechanism for IP packet delivery using Mobile IP.
Explain in detail, How Agent Registration Takes Place?
Explain the process of registration in Mobile IP.
Explain agent registration process in mobile communication.
What is Tunnelling and Encapsulation? List various Encapsulation Schemes in detail. What are the various types of Encapsulation techniques?
Short note on Tunnelling and Encapsulation in Mobile. (P7: What is reverse tunneling?)
Short note on Agent Advertisement and Agent Discovery.
Generic Routing Encapsulation (GRE) allows the encapsulation of packet of one protocol suite into the payload portion of another protocol suite — this is nothing but:
A) GRE B) IP Tunneling C) Protocol Synchronization D) Minimal Encapsulation
3.3 · Mobile TCP — Snooping TCP, Selective Retransmission
Explain Snooping TCP and Mobile TCP with their merits and demerits. (P3: What is Snooping TCP? What are its advantages and disadvantages?)
Explain selective retransmission process at TCP.
How is IP mobility achieved in wireless network?
04
Wireless Local Area Networks
4.1 WLAN Introduction · Infrastructure & Ad-hoc Networks
4.2 IEEE 802.11: System Architecture · Protocol Architecture · Physical Layer · MAC Layer · MAC Management · 802.11a / 802.11b Standard
4.3 Wi-Fi Security: WEP · WPA · Wireless LAN Threats · Securing Wireless Networks
4.4 Bluetooth: Introduction · User Scenario · Architecture · Protocol Stack
4.2 IEEE 802.11: System Architecture · Protocol Architecture · Physical Layer · MAC Layer · MAC Management · 802.11a / 802.11b Standard
4.3 Wi-Fi Security: WEP · WPA · Wireless LAN Threats · Securing Wireless Networks
4.4 Bluetooth: Introduction · User Scenario · Architecture · Protocol Stack
6 HRS
4.1 · Infrastructure vs Ad-hoc & Hidden/Exposed Station
Compare Infrastructure Based Network with Ad-hoc network.
Explain the problems such as Hidden Station, Exposed Station, Near Terminal and Far Terminal with possible solutions. (P4: Explain hidden & exposed station Problem — how they can be avoided.)
4.2 · IEEE 802.11
Explain the protocol architecture of IEEE 802.11 with diagram. (P7: Explain protocol architecture of WLAN and its different types.)
What is the responsibility of MAC management in IEEE 802.11?
What is an Access Point?
A) Provides access to LLC layer B) Provides access to MAC layer C) Provides access to Destination System D) An entity that provides access to Basic Service Set
4.3 · Wi-Fi Security: WEP, WPA, WLAN Threats
Describe Wireless Security in reference to WEP, WPA, Wireless LAN Threats. Discuss in detail about Wi-Fi security protocol.
Explain wireless LAN security threats (hidden station and exposed station problem with solution in WLAN).
4.4 · Bluetooth
Draw a neat sketch of Bluetooth protocol stack and explain the same. (P4 short note: Bluetooth.)
05
Mobility Management
5.1 Mobility Management: Introduction · IP Mobility · Optimization · IPv6
5.2 Macro Mobility: MIPv6 · FMIPv6
5.3 Micro Mobility: CellularIP · HAWAII · HMIPv6
5.2 Macro Mobility: MIPv6 · FMIPv6
5.3 Micro Mobility: CellularIP · HAWAII · HMIPv6
6 HRS
5.1 · IP Mobility & IPv6
Short note on IP Mobility. How is IP mobility achieved in wireless network?
Short note on IPV6. (P6 MCQ: VoLTE Stands for — Voice over Long Term Evolution.)
5.3 · Micro Mobility — CellularIP, HAWAII
What is the need of Micro Mobility? Explain Cellular IP in detail.
Describe the use of Cellular IP. What is micro mobility and its approaches?
VoLTE Stands for:
A) Voice over Long Term Evolution B) Voice Over Local Telecommunication Equipment C) Video Over Long Term Evolution D) Volume Over Long Term Evolution
06
Long-Term Evolution (LTE) of 3GPP
6.1 LTE System Overview · Evolution from UMTS to LTE
6.2 LTE/SAE Requirements · SAE Architecture
6.3 EPS: Evolved Packet System · E-UTRAN · Voice over LTE (VoLTE) · LTE-Advanced
6.4 Self Organizing Network (SON-LTE) · SON for Heterogeneous Networks (HetNet) · Comparison between Generations (2G, 3G, 4G, 5G) · Introduction to 5G
6.2 LTE/SAE Requirements · SAE Architecture
6.3 EPS: Evolved Packet System · E-UTRAN · Voice over LTE (VoLTE) · LTE-Advanced
6.4 Self Organizing Network (SON-LTE) · SON for Heterogeneous Networks (HetNet) · Comparison between Generations (2G, 3G, 4G, 5G) · Introduction to 5G
7 HRS
Explain different components used in LTE architecture with diagram.
Compare LTE and LTE Advanced.
Explain in short Voice over LTE (VoLTE).
What do you mean by Self Organizing Networks (SON)? Explain the architecture of SON.
Explain self-organizing networks (SON) for Heterogeneous Networks.
Write a Short Note on the Following (Any Four):
- a) Bluetooth
- b) HIPERLAN
- c) IPV6
- d) CDMA
- e) Snooping TCP
Write a Short Note on the Following (Any 2):
1) Bluetooth 2) IP Mobility 3) UMTS 4) Snooping TCP
VoLTE Stands for:
A) Voice over Long Term Evolution B) Voice Over Local Telecommunication Equipment C) Video Over Long Term Evolution D) Volume Over Long Term Evolution