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Explore the fundamentals and architecture of mobile and wireless communication, including wired vs. wireless networks, mobile computing, multiplexing, spread spectrum techniques, GSM architecture, handover, roaming, 2G vs. 3G services, GPRS, SMS, comparison of GSM vs. CDMA, and more.
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MC7503-MOBILE COMPUTING REGULATION 2013 III MCA - V SEMESTER
WIRELESS COMMUNICATION FUNDAMENTALS,ARCHITECTURE • Discussion on: Wired network vs Wireless network • What is mobile computing? • Categories of devices Fixed and Wired Fixed and Wireless Mobile and Wireless Mobile and Wired • Applications of mobile and wireless devices
Multiplexing: What is multiplexing? Need of it. • Dimensions SDM FDM TDM CDM
Spread spectrum : What is spread spectrum? • Spread spectrum techniques: DSSS FHSS • Advantages of spread spectrum
GSM Architecture: Introduction Five main groups MS BSS NSS OSS SMS
Handover What is handover? Types: Soft handover Hard handover Examples
Roaming What is roaming? Types Horizontal Roaming Vertical Roaming Example
2G vs 3G services: Comparison of 2G , 3G in terms of -> Introduced Year -> Datarates offered -> Modulation Techniques used -> Bandwidth -> Technology -> Standards -> etc.,
GPRS: Introduction Two new nodes for packet switching: * SGSN * GGSN Enhanced nodes in GSM
SMS : * What is SMS ? * SMS Architecture * Characteristics of SMS * Two types SMMO SMMT
Comparison of GSM vs CDMA : In terms of : Storage Type Data transfer Network International Roaming Frequency band Network service and technology
GSM Addresses and Identifiers IMEI IMSI MS-ISDN LAI MSRN TMSI LMSI CI
Authentication and Security A3 :Authentication Algorithm A8 :Key generation A5/1:Ciphering and deciphering Algorithms
Introduction: -> Discussion of wireless short range networks -> Need for standards -> Example wireless networks.
WLAN components : Client LAN adapter Access point LAN bridge
WLAN Topologies : Peer to peer topology Access point based topology point to multipoint based topology
WLAN technology : Infrared spread spectrum techniques DSSS FHSS UHF technology
802.11 Standard : Introduction to IEEE 802.11 reference Duties of physical layer Duties of MAC
802.11 Architecture model : BSS ESS • Type of transition on devices No transition BSS transition ESS transition
Physical layer Infrared DSSS FHSS • DFWMAC DCF(CSMA/CA Algorithm) PCF
WAP • Introduction • WAP layers WAE WSP WTP WDP
Bluetooth • What is bluetooth ? • Bluetooth protocol stack • Bluetooth groups TPG MPG AG
Transport PG : L2CAP LMP HCI Baseband and radio • MPG RFCOMM SDP OBEX IrDA TCS
IrDA(Infra red data Association) • What is IrDA ? • IrDA specification IrPHY IrLMP IrLAP • Applications
Zigbee • What is zigbee ? • Zigbee protocol Architecture IEEE 802.15.4 Zigbee layers Manufacturer Application
Mobile network layer : • Need of mobile IP Internet and DNS Design IP Address hierarchy Support mobility and wireless mode
Entities and Terminologies : Mobile node Correspondent node Home Agent Foreign Agent COA Co-located -COA Foreign Agent- COA
IP packet delivery : Packet delivery to and from MN to CN • Agent discovery Agent Advertisement Agent Discovery
Registration • Registration request : Mobility binding ICMP packet • Registration reply ICMP packet and field description
Tunneling and Encapsulation • What is tunnelling ? • What is encapsulation? • What is decapsulation? • Types IP-in-IP encapsulation Minimal encapsulation Generic routing encapsulation
Optimization : To overcome Triangular Routing • Messages Binding request Binding reply Binding acknowledgement Binding warning • Discuss about smooth handover
DHCP • DHCP provides • IP address • Subnet mask • Domain name • DNS server address • Default gateway
TCP Improvement : • Address the issue of why fixed TCP is not applicable to wireless and mobile environment • Indirect TCP • Snooping TCP • Mobile TCP
Indirect TCP(I-TCP) • Concept • Data transfer from CH to FA and FA to MN • Handover Process • Advantages and disadvantages
Snooping TCP(S-TCP) • Concept • Data transfer from CH to FA and FA to MN • Handover Process • Advantages and disadvantages
Mobile TCP(M-TCP) • Concept • Data transfer from CH to FA and FA to MN • Handover Process • Advantages and disadvantages
Mobile Ad-hoc Networks : • Characteristics of ad-hoc network • Instant infra-structure • Disaster relief • Remote access • Effectiveness
Routing algorithm • DSDV • Distance vector routing logic with introducing sequence no damping
DSR Routing Algorithm • Route discovery • Route maintenance • Routing table construction
Alternative metrics : • LIR –least Interference Routing • Calculation of interference • Route identification
Overview of ad-hoc routing protocols • Flat ad-hoc routing • Hierarchical ad-hoc routing • Geographical position assisted ad-hoc routing
Security • Network security requirements • Key management • Trusted key management in ad-hoc network
Password based group system • Threshold cryptography • Self organized public key management for MANET
Wireless sensor network • Characteristics of WSN • Architecture of WSN • Application of WSN
Localization : • Types of nodes • Anchor node • Sensor node • Range based solution • Range free solution
Routing in WSN • Routing challenges and design issues • Network dynamic in nature • Energy consumption