Criteria

Underwater Sensor Networks

Floating Sensor Networks

Cost

-Complex node design

-Advanced hardware protection

Less complexity required in transceiver design and node processing

Deployment/ Maintenance

-Heavy and bulky due to hardware protection

-Difficult to maintain once deployed

Relatively easy both to deploy and retrieve for maintenance purposes.

Medium

No optimal communication medium

-No underwater communication necessary

-ZigBee, 6LoWPAN can be used

Power Supply

-Complex DSP resulting in higher power requirements

-Difficult to replenish power

-Reduced communication power requirements

-Easier to replace/recharge power supply

Localization

No firmly established method.

Can be used with GPS to accurately establish the node’s position.

Security

Increased power requirements, less power available for security protocols.

Can take advantage of establish standards that consider security, such as ZigBee/6LoWPAN