Introduction: Mobile Radio Systems around the world, Examples of Wireless
Communication Systems; Paging Systems, Cordless Telephone Systems, Cellular
Telephone Systems, Comparison of common Wireless Communication systems
Digital Communication through fading multipath channels: Fading channel and
their characterstics- Channel modelling, Digital signalling over a frequency non selective
slowly fading channel- frequency selective slowly fading channel- Calculation of error
probabilities- Tapped Delay line model- The RAKE demodulator- performance-Concept
of diversity branches and signal paths- Combining methods- Selective diversity
combining-pre-detection and post-detection combining- Switched combining- maximal
ratio combining- Equal gain combining.
Multiple Access Techniques for Wireless Communications: Introduction, Frequency
Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Spread
Spectrum Multiple Access, Space Division Multiple Access, Packet Radio Protocols;
Pure ALOHA, Sloted ALLOHA, Capacity of Cellular Systems
Wireless Networking: Introduction, Difference between Wireless & Fixed Telephone
Networks, Development of Wireless Networks, Traffic Routing in Wireless Networks,
Wireless Data Services, Common Channel signaling, Broad band ISDN & ATM,
Signaling System No. 7(SS-7), Personal Communication Services/ Networks, Protocols
for Network Access, Network Databases.
Wireless Systems & Standards: AMPS and ETACS, United states digital cellular (IS54
& IS 136), Global system for Mobile (GSM); Services, Features, System Architecture,
and Channel Types, Frame Structure for GSM, Speech Processing in GSM, CDMA
Digital standard (IS 95); Frquency and Channel specifications, Forward CDMA Channel,
Reverse CDMA Channel, CT2 Standard for Cordless Telephones, Personal Access
Communication System, Pacific Digital Cellular, Personal Handyphone Systems, PCS
and ISM Bands, Wireless Cable Television.
Wireless Local Area Networks (WLAN): Components and working of WLAN,
transmission media for WLAN, Modulation techniques for WLAN (DSSS, FHSS), IEEE
802.11 standards and protocols for WLAN (MACA, MACAW). Mobile Network and
Transport layer: Mobile IP, Mobile TCP, traffic routing in wireless networks, wire less
ATM. Wireless Local Loop(WLL) : WLL Architecture, WLL Technologies and frequency
spectrum.
Future trends: Blue Tooth technology, 4G mobile techniques, Wi-Fi Technology.