Carrier aggregation

In wireless communication, carrier aggregation is a technique used to increase the data rate per user, whereby multiple frequency blocks (called component carriers) are assigned to the same user.[1] The maximum possible data rate per user is increased the more frequency blocks are assigned to a user. The sum data rate of a cell is increased as well because of a better resource utilization. In addition, load balancing[2]: p.42  is possible with carrier aggregation. Channel selection schemes for CA systems taking into account the optimal values for the training length and power, the number of the probed sub-channels and the feedback threshold such that the sum rate is also important for optimal achievable capacity.[3]

  1. ^ Dahlman, Erik; Parkvall, Stefan; Sköld, Johann (2014). 4G LTE / LTE-Advanced for Mobile Broadband. Elsevier. ISBN 9780124199859.
  2. ^ Holma, Harri; Toskala, Antti; Tapia, Pablo (2012). LTE-Advanced: 3GPP Solution for IMT-Advanced. Wiley. ISBN 9781119974055.
  3. ^ S. C. G. Tsinos, F. Foukalas, T. Khattab and L. Lai "On Channel Selection for Carrier Aggregation Systems." IEEE Transactions on Communications, 66(2), Sep.2017, 808-818.

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