CAJ | 학술논문

现有基于效用的无线网络资源分配方法大多未考虑网络整体效用最优的问题，只关注基站内的资源分配最优化，没有将基站选择问题与基站内资源分配问题相结合。鉴于此，提出一种基于效用的多基站协作无线资源分配方法，将无线网络资源分配划分为2个阶段，即基于拥塞度选择基站与基于边际效用实现基站内的资源分配。仿真实验结果表明，在268次基站选择中，该方法与效用最优的基线方法有218次相同，占81.3%，但其平均用时只有0.066 s，远低于基线方法的0.926 s，从而验证了该基站选择方法的合理性，以及基站内资源分配方法的有效性和高效性。
현유기우효용적무선망락자원분배방법대다미고필망락정체효용최우적문제，지관주기참내적자원분배최우화，몰유장기참선택문제여기참내자원분배문제상결합。감우차，제출일충기우효용적다기참협작무선자원분배방법，장무선망락자원분배화분위2개계단，즉기우옹새도선택기참여기우변제효용실현기참내적자원분배。방진실험결과표명，재268차기참선택중，해방법여효용최우적기선방법유218차상동，점81.3%，단기평균용시지유0.066 s，원저우기선방법적0.926 s，종이험증료해기참선택방법적합이성，이급기참내자원분배방법적유효성화고효성。
Most utility based wireless resource allocation methods only focus on the optimal allocation within a base station. Because of ignoring the issue of base station selection, these methods can not achieve the optimal utility of whole network. Therefore, this paper proposes a utility based multi-base-station cooperation wireless resource allocation method, which is divided into two stages. In the first stage, base stations are selected according to their congestion degree. And in the second stage, the resource in each base station is allocated according to marginal utility. The simulation experiments show that, between the approach and the baseline method, of all the 268 base station selections there are 218 accounting for 81.3%having the same selection result and the average elapse time of the proposed method is only 0.066 s, which is much lower than the baseline method 0.926 s. These facts show the rationality of the base station selection method as well as the efficiency and effectiveness of the resource allocation method.