TY - GEN
T1 - A two-phase algorithm for network coding enabled cellular systems
AU - Hwang, June
AU - Kim, Seong Lyun
PY - 2007
Y1 - 2007
N2 - We consider spectral and energy efficiency achieved by a novel relay communication in a cellular system, in which the so-called relay-beneficial mobile nodes communicate with base stations through appropriate relay nodes. The relay node uses the network coding to mix up- and downlink traffic; moreover, the mobile nodes and base stations adopt Maximal Ratio Combining (MRC) scheme to take advantage of cooperative transmission. For this system, we derive an information-theoretical condition, under which the cooperative transmission (combined with network coding) is more beneficial than the direct transmission. Using that condition, we suggest a two-phase algorithm to select the relay nodes (Phase 1) and to determine the transmission powers of those relay nodes (Phase 2). The numerical examples using this algorithm show improved energy efficiency compared to a plain system.
AB - We consider spectral and energy efficiency achieved by a novel relay communication in a cellular system, in which the so-called relay-beneficial mobile nodes communicate with base stations through appropriate relay nodes. The relay node uses the network coding to mix up- and downlink traffic; moreover, the mobile nodes and base stations adopt Maximal Ratio Combining (MRC) scheme to take advantage of cooperative transmission. For this system, we derive an information-theoretical condition, under which the cooperative transmission (combined with network coding) is more beneficial than the direct transmission. Using that condition, we suggest a two-phase algorithm to select the relay nodes (Phase 1) and to determine the transmission powers of those relay nodes (Phase 2). The numerical examples using this algorithm show improved energy efficiency compared to a plain system.
UR - http://www.scopus.com/inward/record.url?scp=36849010667&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=36849010667&partnerID=8YFLogxK
U2 - 10.1145/1280940.1280956
DO - 10.1145/1280940.1280956
M3 - Conference contribution
AN - SCOPUS:36849010667
SN - 1595936955
SN - 9781595936950
T3 - IWCMC 2007: Proceedings of the 2007 International Wireless Communications and Mobile Computing Conference
SP - 73
EP - 78
BT - IWCMC 2007
T2 - IWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference
Y2 - 12 August 2007 through 16 August 2007
ER -
