Publications [#336742] of Vahid Tarokh

Papers Published

1. Shin, WY; Lucani, DE; Médard, M; Stojanovic, M; Tarokh, V, Multi-hop routing is order-optimal in underwater extended networks, Ieee International Symposium on Information Theory Proceedings (August, 2010), pp. 510-514, ISBN 9781424469604 [doi]
   (last updated on 2023/06/01)

   Abstract:
   Capacity scaling laws are analyzed in an underwater acoustic network with n regularly located nodes. A narrowband model is assumed where the carrier frequency is allowed to scale as a function of n. In the network, we characterize an attenuation parameter that depends on the frequency scaling as well as the transmission distance. A cut-set upper bound on the throughput scaling is then derived in extended networks. Our result indicates that the upper bound is inversely proportional to the attenuation parameter, thus resulting in a highly power-limited network. Furthermore, we describe an achievable scheme based on the simple nearest-neighbor multi-hop (MH) transmission. It is shown under extended networks that the MH scheme is order-optimal as the attenuation parameter scales exponentially with √n (or faster). Finally, these scaling results are extended to a random network realization. © 2010 IEEE.