Progress optimization is a strategy that returns a suboptimal solution as early as possible to the user, and later progressively improves it over time.
However, the centralized scheme is suggested to apply for the noncoordinated system, as the decentralized scheme is a suboptimal solution in this situation.
Enhanced successive stream selection (ESNSSS): In order to prevent such a suboptimal solution as in SNSSS approach, ESNSSS constructs different stream sequences each of which has a different initial stream.
We note here that the optimal solution in (25) is computationally demanding, so we consider a suboptimal solution, where subcarrier and power allocation are done independently as follows.
If there is no optimal solution in real scenarios, a suboptimal solution μ ′ can be chosen as the possible candidate according to the following measurement: hspace{60pt} bigtriangleupmu = midmu'-mu^mid (14).
The algorithms proposed in the STD, SSD, SA, and TPA steps provide a suboptimal solution which have low overhead and low computational complexity, and, as shown in Section 4 (Figs. 5, 6, 7, 8, 9, and 10), lead to better performance compared with an existing suboptimal algorithm.
The algorithm determines a suboptimal solution subject to singular constraints.
"We are concerned with the unintended consequences or outcome if you have very specific goals, because you may end up with a suboptimal solution".
We develop a new method, called ε-transformation, which makes use of this complexity transition, to find a suboptimal solution.
In this work, the authors propose a suboptimal solution using a fixed structure in the compensator.
