Sensor Network

Mobile Adhoc Networks and Wireless Sensor Network: - 

• self configuration is Crucial
• The Network is expected to work without manual management or configuration 
• Notion of Manet are Associated with wireless communication and wireless multihop SPECIFICALLY communication.
• The name indicates the mobility of participating nodes as a typical ingredient.

Applications and equipment: -

• The terminal can be fairly powerful with a comparably large battery
• needed due to human in the loop
• used for voice communication 
• Equipment has to be powerful enough to support Those Application 

Application Specific: -

• Many different application scenarios for wireless sensor network powerful enough to support Those application.

Application Specific: -

• Many different application scenarios for wireless sensor network Become Possible.
• EC., wireless sensor networks are conceivable with very different network densities from very sparse to very dense deployments.

Environment Interaction: -

• Wireless Sensor Networks have to interact with environment Their traffic characteristics can be expected to be very different from other human driven form of networks

Scale: -

• Wireless Sensor Networks have to scale to much larger numbers of entities than current adhoc networks.
• Requiring different more scalable solutions.

Energy: -

• In Both Wireless Sensor Networks and Manet's energy is a scare resource.

Self configurability: -

• self configure into connected networks.

Dependability and Quality of Service: -

• MANet- each node Should be fairly reliable 
• WSN - node is next to irrelevant 

Data centric: -

• Redundant deployment will make data centric protocols attractive in wireless sensor network.
• Data centric protocols are irrelevant to Manet

Simplicity and resource scarceness: -

• Sensor nodes are simple and energy supply is scarce then the operating and networking software must be kept in orders of magnitude simpler Compared To Today's desktop.
• Resources like memory Which is irrelevant for comparably heavyweight Routing Protocols as Those used in Manet is not available in arbitrary quantities Requiring new scalable resource efficient solutions.

Mobility: -

• Nodes moving around changing multihop routes, First Sensor network can be used to detect and observe a physical phenomenon. (Cause and events)., Secondhand is the sinks of information in th network.

Field Buses and Wireless Sensor Networks: -

• Field buses- network designed for operation under hard real time constraints.
• Built in Fault Tolerance 
• predominantly in Control Applications
• as part of control loop.
• Because of stringent hard realtime requirements. thesis networks are wired and Layer One, Two and 7 of the OSI are used.
• avoid communication over multi hop
•  avoid queuing delay

Enabling technologies for wireless sensor network

• building wireless sensor network is Possible with some fundamental advances in technologies 
• First- minimization / miniaturization of hardware
• smaller size chips have driven Power Consumption 
• particularly relevant to the microcontroller and memory chips
• more energy efficient
• reduced size and energy
• Lower cost Necessary to make redundant deployment of nodes affordable
• sensor node have to be Accompanied by Power Supply 
• high capacity batteries that last for long times 
• sensor node has a device called energy scavenging (recharging battery with the energy gathered from the environment.