spectral efficiency的用法和樣例：
例句
- Simulation results show that the spectral efficiency is improved and the outage probability is decreased in the proposed joint algorithm.
模擬結果表明，本文提出的聯合演算法具有較高的頻譜效率和較低的中斷概率。 - Cooperative relaying can combat multi-path fading and shadowing effect in wireless networks to enhance communication quality and bandwidth efficiency.
採用中繼傳輸能夠抵抗無線通道的多徑衰落，克服陰影效應，從而增強通信質量，提高頻譜效率。
