TY - GEN
T1 - A two-tier frequency reuse scheme
AU - Haddad, Yoram
AU - Porrat, Dana
PY - 2010
Y1 - 2010
N2 - The race toward higher throughputs for cellular network users is getting more difficult everyday. On the one hand cellular network operators wish to increase benefits by offering new services to users, but on the other hand spare radio resource are shrinking away. The spreading of WiFi-3G dual mode devices is making this fight even harder. The new "Femtocell" technology is expected to be the rescuer of cellular network operators. This "mini" cellular base station will provide high indoor coverage and throughput to indoor users relying on regular home access connections to the internet. However the big challenge remaining is to efficiently allocate spectrum to this technology. As spectrum licenses are very expensive most operators do not hold enough to completely separate the femtocell and macrocell layers. Coexisting femtocells and macrocells lead to severe interference scenarios. We propose here a double frequency reuse scheme, which allows a femtocell to reuse the frequency already in use by adjacent sectors of the overlaying macrocell. We present three solutions: full, partial or mixed frequency reuse. Each has advantages and drawbacks, and may be more suitable than the others in some specific configurations. Thanks to our scheme we preserve the radio resource management efficiency without affecting the system performance.
AB - The race toward higher throughputs for cellular network users is getting more difficult everyday. On the one hand cellular network operators wish to increase benefits by offering new services to users, but on the other hand spare radio resource are shrinking away. The spreading of WiFi-3G dual mode devices is making this fight even harder. The new "Femtocell" technology is expected to be the rescuer of cellular network operators. This "mini" cellular base station will provide high indoor coverage and throughput to indoor users relying on regular home access connections to the internet. However the big challenge remaining is to efficiently allocate spectrum to this technology. As spectrum licenses are very expensive most operators do not hold enough to completely separate the femtocell and macrocell layers. Coexisting femtocells and macrocells lead to severe interference scenarios. We propose here a double frequency reuse scheme, which allows a femtocell to reuse the frequency already in use by adjacent sectors of the overlaying macrocell. We present three solutions: full, partial or mixed frequency reuse. Each has advantages and drawbacks, and may be more suitable than the others in some specific configurations. Thanks to our scheme we preserve the radio resource management efficiency without affecting the system performance.
KW - Cellular networks
KW - Femtocell
KW - Frequency reuse
KW - Macrocell
KW - Radio resource allocation
UR - http://www.scopus.com/inward/record.url?scp=78751503350&partnerID=8YFLogxK
U2 - 10.1109/pimrcw.2010.5670362
DO - 10.1109/pimrcw.2010.5670362
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AN - SCOPUS:78751503350
SN - 9781424491162
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 203
EP - 207
BT - 2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010
T2 - 2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010
Y2 - 26 September 2010 through 30 September 2010
ER -