Introduction to Mobile Technology
Week 1 Current trends and types of devices
Telephones and Information Devices
Types  cellular
wifi
radio – AM, FM ranges
walkie talkie - VHF
satellite ‘phones
Cost, range, limitations
Week 2 Waves
Nature of waves         water/pond – when pebble dropped into middle – lovely pattern
                        motorway – how to solve traffic jams
                        radio/electromagnetic – unseen, through walls
                        light – also electromagnetic
                        V=fλ
Week 3 Oscilloscope and wave generator
            Sine waves – the basis of all waves – interesting when several are mixed together.
square/triangle waves – useful, especially the square waves
voice patterns – complex waves. Can be synthesised with machines and sine waves
amplitude/frequency – basic measurements for waves
phase – people walking the Millennium Bridge in or out of step (phase)
Week 4 Data as binary patterns
            ASCII
Morse (ternary)
Analogue conversion – voice
                                    - CD music
encryption
Week 5            Waves to carry data
            Encryption for different systems
Multiple access (MA)
FM/AM radio systems
binary data as FM
binary data as AM
clocking requirements
need to block data
walkie talkie – 2 frequencies. Same for mobiles

Week 6            Interference
            Separate data channels – crosstalk
frequency separation
FDMA
telephones (POTS)
radio stations – licensed ranges
traffic lights (optical fibres!)
Week 7            Cellular systems
            Structure – Base Station (BS), Mobile switching centre (MSC)
Handover – signal strength – Manual Overide
Frequency reuse - D=R√3N
Frequency ranges used by operators
base station construction
Week 8            Mobile packets
            Analogue conversions – speed – resolution – enhancing
Multiplexing
TDMA
Week 9            Transmission Protocols
            FDMA – TDMA
control packets
Week 10          Additional facilities
            SMS
Imaging
internet connection
bandwidth calculations
Week 11          Mobile Operating Systems
            3G, 4G, 5G
Apps’ – writing, inventing
Week 12          WiFi
            Operation with central controller
frequencies, protocols (2.4GHz, 5GHz, 802.11x)
investigation of college system
Week 13          Other Systems
            Satellite – Iridium, Thuraya, Globalstar and Inmarsat
HALO projects
Week 14          Security
            Voice
text
CDMA
Week 15          Future Developments
            Personal Area Networks (PAN)
mobile device design
Implications for business and security