A Closed Form Approximation of the Sum Rate Upperbound of Random Beamforming |
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| Authors: | Yohan Kim Janghoon Yang Dong Ku Kim |
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| Affiliation: | Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul; |
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| Abstract: | In this letter, a closed form expression of the sum rate upperbound is derived for random beamforming. The proposed analytic solution provides a good approximation of the 'actual' sum rate performance, for which the conventional asymptotic analysis is less meaningful. Moreover, our result leads to an implication of the asymptotic growth rate of M log log K. |
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