Two-Way Transmission Capacity of Wireless Ad-hoc Networks

The transmission capacity of an ad-hoc network is the maximum density of active transmitters in an unit area, given an outage constraint at each receiver for a fixed rate of transmission. Most prior work on finding the transmission capacity of ad-hoc networks has focused only on one-way communication where a source communicates with destination and no data is sent from destination to the source. In practice, however, two-way or bidirectional data transmission is required to support control functions like packet acknowledgements and channel feedback. This paper extends the concept of transmission capacity to twoway wireless ad-hoc networks, by incorporating the concept of a two-way outage with different rate requirements in both directions. Upper and lower bounds on the two-way transmission capacity are derived for frequency division duplexing, under the assumption that the channel coefficients are independent on different carrier frequencies. The derived bounds are used to derive the o...

• Type: Journal
• Year: 2010
• Where: CORR
• Authors: Rahul Vaze, Kien T. Truong, Steven Weber, Robert W. Heath Jr.
• Keywords: Ad-Hoc Networks, CORR 2010, Education, Transmission Capacity, Two-way Transmission Capacity