TY - GEN
T1 - Spectrum leasing via cooperative opportunistic routing in distributed ad hoc networks
T2 - 45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011
AU - Tapparello, Cristiano
AU - Chiarotto, Davide
AU - Rossi, Michele
AU - Simeone, Osvaldo
AU - Zorzi, Michele
PY - 2011
Y1 - 2011
N2 - A spectrum leasing strategy is considered for the coexistence of a licensed multihop network and a set of unlicensed nodes. The primary network consists of a source, a destination and a set of additional primary nodes that can act as relays. In addition, the secondary nodes can be used as extra relays and hence potential next hops following the principle of opportunistic routing. Secondary cooperation is guaranteed via the "spectrum leasing via cooperation" mechanism, whereby a cooperating node is granted spectral resources subject to a Quality of Service (QoS) constraint. The objective of this work is to find optimal as well as efficient heuristic routing policies based on the idea outlined above of spectrum leasing via cooperative opportunistic routing. The optimal policy is obtained by casting the problem in the framework of stochastic routing. The optimal performance is then numerically compared with two proposed heuristic routing schemes, which are shown to perform close to optimal solutions and as well being tunable in terms of end-to-end throughput vs primary energy consumption.
AB - A spectrum leasing strategy is considered for the coexistence of a licensed multihop network and a set of unlicensed nodes. The primary network consists of a source, a destination and a set of additional primary nodes that can act as relays. In addition, the secondary nodes can be used as extra relays and hence potential next hops following the principle of opportunistic routing. Secondary cooperation is guaranteed via the "spectrum leasing via cooperation" mechanism, whereby a cooperating node is granted spectral resources subject to a Quality of Service (QoS) constraint. The objective of this work is to find optimal as well as efficient heuristic routing policies based on the idea outlined above of spectrum leasing via cooperative opportunistic routing. The optimal policy is obtained by casting the problem in the framework of stochastic routing. The optimal performance is then numerically compared with two proposed heuristic routing schemes, which are shown to perform close to optimal solutions and as well being tunable in terms of end-to-end throughput vs primary energy consumption.
KW - Spectrum leasing
KW - cooperative transmission
KW - heuristic routing schemes
KW - opportunistic routing
KW - optimal policies
KW - superposition coding
UR - http://www.scopus.com/inward/record.url?scp=84861316153&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84861316153&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2011.6190320
DO - 10.1109/ACSSC.2011.6190320
M3 - Conference contribution
AN - SCOPUS:84861316153
SN - 9781467303231
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1747
EP - 1752
BT - Conference Record of the 45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011
Y2 - 6 November 2011 through 9 November 2011
ER -