Beyond The horizon final

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Beyond the Horizon (A New Era of Wireless Space Mobile Communication) Arindam Banerjee Siladitya Sen Poulomi Das Student of M.Tech Associate Professor Student of M.Tech , Heritage Institute of Technology (Kolkata) 01 7 th Feb, 2012 MDCCT-2012

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Table of Content : Introduction Challenges Objectives Network Architecture Operation of Complex Network LASER operation Future Work 02 7 th Feb, 2012 MDCCT-2012

Introduction: 

Introduction If I say a ‘Hi’ to you, and you hear it after 5 Hours!!!!!!!!!! Imagine what will happen???? Intensity of Electromagnetic Wave decreases with 1/ r 2 . Line of Sight communication required. 7 th Feb, 2012 MDCCT-2012 03

Challenges: 

Challen g es Long distance results low S/N ratio. High signal propagation delay. High data corruption rates. Disruption events. Asymmetric B/W. High link error rates for radio frequency communication channels. Complex geography environment. 04 7 th Feb, 2012 MDCCT-2012

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Develop protocols for inter planet communications. Optimum numbers of satellites will also be considered. Optimum running cost. Live broadcasting. Automatic control of different vehicles will also be possible. Increase the volume of space data rate. Proper data Security in communication. New type of devices which will able to monitor users’ health, needs, comfort etc. Fixing space equipments in proper position. 05 Ob j ective 7 th Feb, 2012 MDCCT-2012

Network Architecture: 

Network Architecture 06 7 th Feb, 2012 MDCCT-2012 Simplified Network Architecture Every equipment in space will fixed in proper location. Relay stations are required at proper distance.

Network Architecture (contd…): 

Network Architecture (contd…) All Planet Base Stations (PBS) are situated 30 km apart. All PSC are situated 9000 km - 10512 Km apart. PBS and PSC s are stationary on their orbits. Processing speed of the processor are less than nanosecconds. We use LASER as carrier so that we can cover a large area under this n/w. 07 7 th Feb, 2012 MDCCT-2012 Earth is moving at 30 km/sec speed on its elliptical orbit. It covers approximately 946080000 km, in a year.

Operation of Complex N/W: 

Operation of Complex N/W 08 7 th Feb, 2012 MDCCT-2012 Satellite Planet Switching Centre Satellite Control Station Planet Base Station Optical Link Microwave Link Planet 1 Planet 2

Functional Units: 

Functional Units 09 7 th Feb, 2012 MDCCT-2012 This Communication System Comprise of User end Devices Antennas Signal Processing Units Optical Transceivers Control Units

User end Devices: 

User end Devices 7 th Feb, 2012 MDCCT-2012 10 New type of user friendly devices Attached With human body Wireless Headphone will be provided for calling Few other Features of Device: : Device carry users’ Global Identity. Biometric locking system. Fuzzy Control Devices. Security Operations.

Antenna: 

Antenna The crucial designing part is antennas. Low & high gain antennas are used in proper places. Low Gain Antennas for Space Vehicles. Circular Polarizing Signal can be used. low gain antennas can only handle a fraction of a data rate. Operating frequencies: 2 GHz – 40 GHz. Antenna Array can be used. 7 th Feb, 2012 MDCCT-2012 11

Antenna Array: 

Antenna Array Advantages of antenna array High flexibility. Lower productive and maintenance cost Modularity & more efficient use of spectrum Moreover multi-mission stations can be designed to track different satellite simultaneously by dividing the antennas in sub-arrays with simultaneous beam forming processes . Electronically steerable antennas for mobile and fixed portable system. 12 7 th Feb, 2012 MDCCT-2012

Steerable Antenna for Fixed Position Portable System: 

Steerable Antenna for Fixed Position Portable System Active multi-beam antenna Consisting of an antenna array that integrates 32 (2x2) sub array modules. Planer & dual circular polarization antenna for Tx & Rx simultaneously. Made up by a planer array of double stacked circular micro-strip patches fed by 2 coaxial probes to generate circular polarization. 13 7 th Feb, 2012 MDCCT-2012

Automatic Steerable Antenna for Mobile Systems: 

Automatic Steerable Antenna for Mobile Systems Complete Antenna Structure Radiating Element of the 4x4 arrays Prototype Top View 14 7 th Feb, 2012 MDCCT-2012

Communication Blocks LASER Transmitter: 

Communication Blocks LASER Transmitter 15 7 th Feb, 2012 MDCCT-2012 Fig: Block Diagram

Communication Blocks LASER Receiver: 

Communication Blocks LASER Receiver 16 7 th Feb, 2012 MDCCT-2012 Fig: Block Diagram

Operational Parameters: 

Operational Parameters 7 th Feb, 2012 MDCCT-2012 17

Mixed Communication: 

Mixed Communication 18 7 th Feb, 2012 MDCCT-2012 High-Speed transmission at 2.5 Gbps. High Bandwidth High Security Fixed & Variable position problem will solved Low weight space crafts. Low power loss for long distance communication. Fig: Mixed Architecture Positions of optical transceivers are fixed and accurate to avoid time delay.

Data Frame Structures: 

Data Frame Structures Data can be classified in three type Transmitting Data Receiving Data Control Word Data will encrypt & coded for security. Asymmetric cryptography will be used. LDPC code is used for compression 7 th Feb, 2012 MDCCT-2012 19

Data Frame Structures: 

Data Frame Structures 3 types of digital data are available Transmitting Data Receiving Data Control Words This data are classified by their header structure. Parity bits, LDPC codes & LOCO algorithms are used. 20 7 th Feb, 2012 MDCCT-2012

Security Architecture: 

Security Architecture 21 7 th Feb, 2012 MDCCT-2012 Security is the Main factor for such Network: Security level vary Application to application User Status Cryptography is also used for data security.

Future Works: 

Future Works Designing of Transmitter & Receiver Proper topology for communication Security Protocols Fixing Systems on proper locations Designing User end devices 22 7 th Feb, 2012 MDCCT-2012

Conclusion: 

Conclusion A new process of fastest inter-planet communication process. In our network the planet position or its tilt will not affect in communication. Deep space communication will be very essential for future so we have to plane it from today. Our proposed network will help to provide a new process of fastest inter-planet communication process 23 7 th Feb, 2012 MDCCT-2012

References: : 

References: [1] Planetory motions form winkipedia [2] www.ll.mit.edu/publications/journal/pdf/vol01_no2/1.2.4 intersatellitecomm.pdf [3] acts.grc.nasa.gov for advance satellite communication [4]www.isro.org › Satellites [5] Results from the DOLCE (Deep Space Optical Link Communications Experiment) Project Guy Baister, Klaus Kudielka*, Thomas Dreischer and Michael Tüchler Oerlikon Space AG, CH-8052 Zürich, Switzerland [6] New Antenna Array Architectures for Satellite Communications Miguel A. Salas Natera et al. Universidad Politécnica de Madrid, Spain [7] Salas Natera, M. A.; Martínez, R.; De Haro Ariet, L. & Fernández Jambrina, J. (2010). Automated System for Measurement and Characterization of Planar Active Arrays. IEEE Internationa Symposium on Phase Array Systems and Technology , pp. 1-6, Boston USA, October 2010. 7 th Feb, 2012 MDCCT-2012 24

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