Circuit switch vs packet switch
- 1. DEPARTMENTOF ELECTRONICS & COMMUNICATION ENGINEERING BIT MESRA, RANCHI 9 ARPIL 2019 1
- 2. Circuit Switched VS Packet Switched Connection • GAURAV BISWAS • BIT MESRA 9 ARPIL 2019 2
- 3. NO CONTENTS PAGE 1 Circuit Switching 4 2 Circuit Establishment 5 3 Packet Switching 6-7 4 Benefits of Packet Switching 8 5 Higher data rate is obtained in HSCSD . Always on connection. 9-10 6 Packet Switch vs. Circuit Switching 11-13 7 Conclusion 14 9 ARPIL 2019 3
- 4. Circuit Switching 9 ARPIL 2019 4 uses a dedicated path between two stations path is reserved for the single pair of end users has three phases circuit establish data transfer circuit disconnect inefficient channel capacity dedicated for duration of connection if no data, capacity wasted inefficient use of the path if there is bursty traffic set up (connection) takes time – setup time once connected, transfer is transparent
- 5. Circuit Establishment 9 ARPIL 2019 5 Mumbai New Delhi - Once the circuit is setup the transmission is transparent no transmission delay and no delay variations Fig:-1 Circuit Establishment
- 6. Packet Switching 9 ARPIL 2019 6 circuit switching was designed for voice packet switching was designed for data transmitted in small packets packets contains user data and control info user data may be part of a larger message control info includes routing (addressing) info packets are received, stored briefly (buffered) and past on to the next node packets are queued
- 7. Packet Switching 9 ARPIL 2019 7 Fig:-2 Packet Switching.
- 8. Advantages 9 ARPIL 2019 8 line efficiency single link shared by many packets over time packets queued and transmitted as fast as possible data rate conversion stations connect to local nodes at their own speed nodes buffer data if required to equalize rates packets accepted even when network is busy priorities can be used
- 9. Higher data rate is obtained in HSCSD:- 9 ARPIL 2019 9 GSM Offers only one time slot(out of 8 time) for a user Whereas HSCSD allow 4 consecutive time slots supports a data rate of 57.6kbps (4*14.4) In principle a user can be assigned all the 8 time slots supporting a data rate of 115.2kbps (8*14.4) In this way HSCSD brings a straightforward improvement in data rate by combining several traffic channels together.
- 10. Always on Connection:- 9 ARPIL 2019 10 GPRS permits always on Connection, which means a connection is already available. Always on Connection doesn’t required to be set up just prior to data transfer.
- 11. 9 ARPIL 2019 11 Circuit & Packet Switched Network:- Fig:-3 Circuit & Packet Switched Network.
- 12. Packet Switch vs. Circuit Switching 9 ARPIL 2019 12
- 13. Differences:- 9 ARPIL 2019 13
- 14. Conclusion:- 9 ARPIL 2019 14 For Data transmission Packet Switching is the more efficient than Circuit Switching whereas, when it comes to voice transmission Circuit switching is more efficient than packet switching
- 15. References:- 9 ARPIL 2019 15 1. Sanjay Kumar,” Wireless Communication”, River Publishers, 2015. 2. https://images.google.com/ - “Google Images”.
- 16. 9 ARPIL 2019 16