Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Impact of the secondary service transmit power constraint on the achievable capacity of spectrum sharing in rayleigh fading environment
AU - Khoshkholgh, Mohammad
AU - Navaie, Keivan
AU - Yanikomeroglu, Halim
PY - 2008/12
Y1 - 2008/12
N2 - The two main constraints on the transmit power allocation of the secondary service in a spectrum sharing scheme are the received interference threshold at the primary receiver, and the maximum transmit power of the secondary user. We obtain a critical system parameter which relates these two constraints and enables the system designer to eliminate the interference threshold constraint by adjusting the maximum transmit power of the secondary users. Eliminating the interference threshold constraint significantly reduces the system complexity by making the power allocation of the secondary service independent from the channel state information between the secondary transmitter and the primary receiver; thus removes the need for signaling between primary and secondary systems.
AB - The two main constraints on the transmit power allocation of the secondary service in a spectrum sharing scheme are the received interference threshold at the primary receiver, and the maximum transmit power of the secondary user. We obtain a critical system parameter which relates these two constraints and enables the system designer to eliminate the interference threshold constraint by adjusting the maximum transmit power of the secondary users. Eliminating the interference threshold constraint significantly reduces the system complexity by making the power allocation of the secondary service independent from the channel state information between the secondary transmitter and the primary receiver; thus removes the need for signaling between primary and secondary systems.
KW - Achievable capacity
KW - interference threshold
KW - opportunistic spectrum access
KW - spectrum sharing
U2 - 10.1109/LCOMM.2008.081153
DO - 10.1109/LCOMM.2008.081153
M3 - Journal article
VL - 12
SP - 865
EP - 870
JO - IEEE Communications Letters
JF - IEEE Communications Letters
SN - 1089-7798
IS - 12
M1 - 10370179
ER -