Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: ,  address the problem of optimal por allocation for multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) broadcast channels with a sum por constraint when transmitter and receiver have perfect channel state information (CSI).  derive optimality conditions for por allocation and present an efficient algorithm achieving the optimal por allocation. Furthermore,  obtain necessary and sufficient conditions for the optimality of frequency division multiple access (FDMA) transmission and single user transmission. It turns out that the assignment of multiple users to one subcarrier is optimal in general.  propose a low complexity algorithm using a pure FDMA-scheme without multiple assignment of users and characterize the achievable rate region in comparison to the complete capacity region.
['Thomas Michel', 'Gerhard Wunder']
I am writing a research paper on a idea Optimal and low complex suboptimal transmission schemes for MIMO-OFDM broadcast channels
[{"from": "human", "value": "I am writing a research paper on a idea Optimal and low complex suboptimal transmission schemes for MIMO-OFDM broadcast channels"}, {"from": "gpt", "value": "Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: ,  address the problem of optimal por allocation for multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) broadcast channels with a sum por constraint when transmitter and receiver have perfect channel state information (CSI).  derive optimality conditions for por allocation and present an efficient algorithm achieving the optimal por allocation. Furthermore,  obtain necessary and sufficient conditions for the optimality of frequency division multiple access (FDMA) transmission and single user transmission. It turns out that the assignment of multiple users to one subcarrier is optimal in general.  propose a low complexity algorithm using a pure FDMA-scheme without multiple assignment of users and characterize the achievable rate region in comparison to the complete capacity region."}]