The spectrum utilization ratio should be improved without harmful effect on current wireless systems and applications. This will greatly help to solve the bottleneck problem of spectrum scarcity.
在不对当前无线系统和应用产生明显影响的条件下提高频谱使用效率，将有助于缓解频谱资源短缺这个瓶颈问题。
In a recent presentation, the regulator's technical advisors compared "dire predictions" about the scarcity of spectrum to Thomas Malthus's grim prognostications in 1798 about the scarcity of food.
最近，相关部门的技术顾问将这一“不详预言”比做托马斯·马尔萨斯预言。1798年，马尔萨斯曾预言食品将成为稀缺物资。
Using the licensed spectrum in "secondary utilization" way, cognitive radio provides a feasible solution for contradiction between spectrum resource scarcity and increasing radio access demands.
认知无线电通过对授权频谱进行“二次利用”的方式，为缓解频谱资源缺乏与日益增长的无线接入需求之间的矛盾提供了可行的思路。
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