Abstract
In this paper, a distributed and autonomous technique for resource and power allocation in orthogonal frequency division multiple access (OFDMA) femto-cellular networks is presented. Here, resource blocks (RBs) and their corresponding transmit powers are assigned to the user(s) in each cell individually without explicit coordination between femto-base stations (FBSs). The “allocatability” of each resource is determined utilising only locally available information of the following quantities: ; the required rate of the user; : the quality (i.e., strength) of the desired signal; : the frequency-selective fading on each RB; and : the level of interference incident on each RB. Using a fuzzy logic system, the time-averaged values of each of these inputs are combined to determine which RBs are most suitable to be allocated in a particular cell, i.e., which resources can be allocated such that the user requested rate(s) in that cell are satisfied.
Original language | English |
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Pages (from-to) | 2758-2771 |
Number of pages | 14 |
Journal | IEEE Transactions on Communications |
Volume | 61 |
Issue number | 7 |
DOIs | |
Publication status | Published - Jul 2013 |
Keywords
- wireless networks
- OFDMA
- fuzzy logic