Title :
The traffic carrying capacity of wireless networks
Author :
Gupta, Piyush ; Kumar, P. Roshan
Author_Institution :
CSL, Illinois Univ., Urbana, IL, USA
Abstract :
How much traffic can wireless networks carry? Consider n nodes located in a disk of area A sq. meters, each capable of transmitting at a data rate of W bits/sec. Under a protocol based model for successful receptions, the total network can carry only Θ (W√An) bit-meters/sec, where 1 bit carried a distance of 1 meter is counted as 1 bit-meter. This is the best possible even assuming the nodes locations, traffic patterns, and the range/power of each transmission, are all optimally chosen. If the node locations and their destinations are randomly chosen, and all transmissions employ the same power/range, then each node only obtains a throughput of Θ (W√nlogn) bits/sec, if the network is optimally operated. Similar results hold for a physical SIR based model
Keywords :
protocols; radio networks; telecommunication traffic; interference; nodes location; physical SIR based model; power; protocol based model; range; traffic carrying capacity; traffic pattern; wireless networks; Contracts; Interference; Noise level; Protocols; Signal to noise ratio; Telecommunication traffic; Throughput; Traffic control; Transmitters; Wireless networks;
Conference_Titel :
Information Theory, 2000. Proceedings. IEEE International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
0-7803-5857-0
DOI :
10.1109/ISIT.2000.866732
