Wireless Network Power Control(功率控制) in NS2

Transmit Power Control in Ad hoc Networks

What is this?

Publications

• 
  Vikas Kawadia and P. R. Kumar
  Accepted for publication in JSAC: Special Issue on Ad Hoc Networks, Vol I. To be published in Jan 2005.
  
• : Vikas Kawadia and P. R. Kumar.
  Presented at IEEE INFOCOM, 2003.
  The is here.
  
• 
  Swetha Narayanswamy, Vikas Kawadia, R. S. Sreenivas and P. R. Kumar
  European Wireless Conference, 2002, Florence, Italy.
  Here is a .
  

Source code

• 
  

System requirements

• Kernel version equal to
• can be obtained here
• A recent version of the package; I am using pcmcia-cs-3.2.1
  

Notes on hardware support for power control

• In our implementation we have used the Cisco Aironet 350 series cards (AIR-PCM352). These cards have 6 power levels of 1, 5, 20, 30, 50 and 100 mW respectively. The power can be set using the iwconfig command. Our implementation supplied above enables per packet power control capability in the kernel and the driver. However per packet power change imposes a huge latency due to firmware limitations. Please see the JSAC paper for more details.
  

NS2 stuff

• Here is the modified NS2 source code: Here is a of the modifications.
  To use this the simplest way would be to get the sources and replace the entire ns-2.26 directory in these sources with the ns-2.26-txpower dir suppiled above. The makefiles in there should produce an executable called ns-txpower.
• The .tcl and the scenario files that go alongwith are provided here: .

Contact

• 
  

---

Last updated : July 19, 2004