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Optimal Allocation of Power Pool for Two-Cell Single-User Joint Transmission. (arXiv:1410.4407v4 [cs.IT] UPDATED)
来源于:arXiv
Joint transmission is a kind of cooperative transmission technology, which
converts other cell interference into signal. In this letter, for single-user
joint transmission, we propose that a power pool can be created in order to
increase the system sum-rate or lower the power consumption. Then, we
investigate the sum-rate maximization problem under this framework. Since it is
impossible that subchannel gains for the two base stations are identical, we
can obtain a much more concise structure and reduce variables to the half of
original problem. And that the closed-form water-filling solution is unique and
global optimum, because it is a convex optimization problem. Compared to the
power allocation without pooling, the performance gain is verified by
simulation. 查看全文>>