types of wireless networks_ppt
TRANSCRIPT
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 1/19
A
Presentation on
Types Of NetworksBy
Ajit A PawarID: 2012H140035G
Under The Guidance of
Mr. Shankar Sir
BITS PILANI KK BIRLA GOA CAMPUS
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 2/19
Types of Networks
• Ad hoc Networks
• Sensor Networks
•
Body Area Networks• Vehicular Networks
• Distributed Processing using Networks
1/17/2013 2
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 3/19
Ad hoc Networks
• Motivation
• Network without infrastructure
• Network constructed for a special purpose
• Ad hoc (Latin word) – “for this(only)”
• Laptops in a conference room –
a single-hop ad hoc network
• Challenges:
•
Lack of central entity for organization available• self-organization
• Limited range of wireless communication
• multi-hopping
1/17/2013 3
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 4/19
Ad hoc Networks
1/17/2013 4
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 5/19
Ad hoc Networks
• Mobility of participants
• Suitable, adaptive protocols
• Battery-operated entities
•
Energy aware networking protocols• Routing
• Table-driven Routing Protocols
• Source-initiated On-demand Routing
• Applications:• Virtual navigation
• Tele-medicine
•
Crisis-management1/17/2013 5
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 6/19
Wireless Sensor Networks•
Similar to ad hoc networks but focus on interacting withenvironment
• Proactive and Reactive sensor Networks
• Sensor nodes deployed in remote environment-generally
random deployment• Nodes process information and communicate it wirelessly
• Wireless sensor & actuator networks (WSAN)
• Challenges:
• Very low power consumption
• Robustness
• Flexibility
• Security
•
Small size and cost1/17/2013 6
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 7/19
Wireless Sensor Networks
1/17/2013 7
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 8/19
Wireless Sensor Networks
• Requirements of the network varies with the application
• Algorithms:
• Localization
•
Data aggregation• Time synchronization
• Applications:
• Environment data collection
• Security monitoring
• Node tracking
1/17/2013 8
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 9/19
Body Area Networks
• Wearable computing devices
• Broad range of possible devices
• Based on WPAN technologies for communications
on, near and around the human body
• Offer “Connected User” experience
• Matches low power environment
1/17/2013 9
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 10/19
Body Area Networks
1/17/2013 10
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 11/19
Body Area Networks
• Technical specifications• Distance 2 m std, 5 m special
• Piconet density 2 - 4 nets / m2
• Devices per network max. 100
• Net network throughput 100 Mbits /s max.• Power consumption ~ 1mW / Mbps
(@ 1 m distance)
• Startup time < 100 us, or< 10% of TX slot
• Latency (end to end) 10 ms• Network setup time < 1 sec
(after initial setup, per device)
• Topology star, mesh or tree
1/17/2013 11
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 12/19
Body Area Networks
• Technical Specifications
• Peer to peer communication, point to multi-point
• Omni-directional antennas: small, flexible
• Quality of service, guaranteed bandwidth – Specific definitions, depends on application
• Needs optimized, low complexity MAC and Networking layer
1/17/2013 12
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 13/19
Vehicular Networks
• Formed between moving vehicles equipped with wireless
interfaces
• Also known as VANETs
• Main objective of increasing road traffic safety and efficiency
by inter vehicular communication
• The network is provided by the DHCP servers installed
roadsides
•
Integration of network interface, GPS receiver , differentsensors and an onboard computer system which is capable
gathering , processing and distributing information
1/17/2013 13
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 14/19
Vehicular Networks
1/17/2013 14
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 15/19
Vehicular Networks
• Requires wireless mobile comm.
• Current options: cellular, ad-hoc, wireless LAN and info
stations
• Comfort applications
• Mobility management schemes must be scalable and efficient
• Geographic routing instead of ad hoc routing due to the large
latency and overhead
•
Hand off management for changing vehicles nearby• management of vehicular network is tougher than other
network management
• Real time requirements
1/17/2013 15
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 16/19
Distributed Processing using
Networks• Collection of processors interconnected by a communication
network in which each processor has its own local memory
and other peripherals
• Message Passing
• Information Sharing among Distributed Users
• Resource Sharing
• provides shorter response times and higher throughput by
load distribution among several processors
• Higher Reliability
• Increased complexity and difficulty in building distributed
network
1/17/2013 16
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 17/19
Distributed Processing using
Networks
1/17/2013 17
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 18/19
Conclusion
We have seen different types of Networks and
their specification along with corresponding
applications in real time world
1/17/2013 18
7/29/2019 Types of Wireless Networks_ppt
http://slidepdf.com/reader/full/types-of-wireless-networksppt 19/19
References
[1]. Can Basaran (YTU), Sebnem Baydere (YTU), Giancarlo ”
Research Integration: Platform Survey”,2006.
[2]. Georgios Karagiannis, Onur Altintas, Eylem Ekici, Geert
Heijenk, Boangoat Jarupan,Kenneth Lin, and Timothy Weil
“Vehicular networking”2011.
Websites:
http://www.cs.ucy.ac.cy
http://en.wikipedia.org
1/17/2013 19