Table of Contents

 1     Scope          
 2     References
 3     Definitions 
        3.1     Terms defined elsewhere        
        3.2     Terms defined in this Recommendation            
 4     Abbreviations and acronyms             
 5     Conventions             
 6     Overview of water quality assessment         
 7     Scenarios for WQA services
        7.1     Scenario I: Real-time water quality data aggregation    
        7.2     Scenario II: Automatic WQA node control         
        7.3     Scenario III: WQA node surveillance and logging            
        7.4     Scenario IV: Water quality prediction through software sensors             
 8     Requirements of WQA services       
        8.1     Reliable data transfer 
        8.2     Real-time water quality information transfer  
        8.3     Bidirectional communication   
        8.4     Security            
        8.5     Water assessment modelling 
 9     USN based WQA services   
        9.1     Water quality distribution service         
        9.2     Water quality prediction service            
        9.3     Service for total amount of polluted water       
10     USN capabilities for WQA services 
       10.1     Reliable communication link in sensor networks           
       10.2     Transmission delay guarantee to the WQA server       
       10.3     Low power consumption in sensor networks 
       10.4     Bidirectional communication between WQA nodes and servers            
       10.5     Multi-hop data transfer in sensor networks   
       10.6     IP infrastructure compatibility               
       10.7     Long distance transmission support in sensor networks            
       10.8     Security services         
       10.9     Data logging  
      10.10     Maintainability of sensor networks   
      10.11     Naming and addressing in sensor networks