TY - GEN
T1 - Interference avoiding radio resource allocation scheme for multi-hop OFDMA cellular networks with random topology
AU - Lim, Sunggook
AU - Lee, Jaiyong
PY - 2010
Y1 - 2010
N2 - Relaying technology is the one of the solutions to expand the coverage and enhance the throughput of a cellular network with low cost, therefore numerous smart relay stations (RSs) which are able to schedule its own transmission frame and manage radio resources allocated by its serving base station (BS) will be deployed within the cellular network. while more RSs are deployed, the network topology is turning to the random topology. In the random topology, however, conventional frequency reuse schemes based on the uniformly distributed RSs are not adoptable because of the randomness for locations of RSs. Another problem is severe increase of interference during the transmission period for an access link because more transmitters including BSs and RSs are existed within a cell. We suggest the random-topology frequency reuse (RFR) scheme supporting the frequency reuse in the cellular multi-hop network with random topology to reduce intra-cell interference. The simulation results show RFR is reducing the overall intra-cell interference compared to the full allocation scheme whose reuse factor is one. The throughput and average signal to interference plus noise ratio (SINR) is still greater than the full allocation scheme although the spectral efficiency is lower than the compared scheme.
AB - Relaying technology is the one of the solutions to expand the coverage and enhance the throughput of a cellular network with low cost, therefore numerous smart relay stations (RSs) which are able to schedule its own transmission frame and manage radio resources allocated by its serving base station (BS) will be deployed within the cellular network. while more RSs are deployed, the network topology is turning to the random topology. In the random topology, however, conventional frequency reuse schemes based on the uniformly distributed RSs are not adoptable because of the randomness for locations of RSs. Another problem is severe increase of interference during the transmission period for an access link because more transmitters including BSs and RSs are existed within a cell. We suggest the random-topology frequency reuse (RFR) scheme supporting the frequency reuse in the cellular multi-hop network with random topology to reduce intra-cell interference. The simulation results show RFR is reducing the overall intra-cell interference compared to the full allocation scheme whose reuse factor is one. The throughput and average signal to interference plus noise ratio (SINR) is still greater than the full allocation scheme although the spectral efficiency is lower than the compared scheme.
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U2 - 10.1007/978-3-642-17587-9_11
DO - 10.1007/978-3-642-17587-9_11
M3 - Conference contribution
AN - SCOPUS:78651100087
SN - 3642175864
SN - 9783642175862
T3 - Communications in Computer and Information Science
SP - 95
EP - 103
BT - Communication and Networking - International Conference, FGCN 2010, Held as Part of the Future Generation Information Technology Conference, FGIT 2010, Proceedings
T2 - International Conference on Communication and Networking, FGCN 2010, Held as Part of the Future Generation Information Technology Conference, FGIT 2010
Y2 - 13 December 2010 through 15 December 2010
ER -