电讯技术
電訊技術
전신기술
Telecommunication Engineering
2015年
11期
1206-1211
,共6页
5G系统%小区间干扰管理%小区分群%多小区协作%干扰泄露
5G繫統%小區間榦擾管理%小區分群%多小區協作%榦擾洩露
5G계통%소구간간우관리%소구분군%다소구협작%간우설로
5 G system%inter-cell interference management%cell clustering%multi-cell cooperation%signal-to-othercell-interference ratio
为了降低5G系统中超密度小区网络的小区间干扰(ICI)，提出了一种基于小区分群的干扰管理方案，其核心思想是将宏小区覆盖下的小小区分群，对群内干扰和群间干扰分别采用基于多小区协作和频域或时域的干扰避免。针对小区分群的关键即干扰权值的计算，提出了一种基于用户的信干噪比(SINR)和干扰泄露(SOIR)计算连续干扰权值的方案，该权值不仅反映用户间的干扰关系，而且自适应地调整干扰用户之间对资源的争夺策略；同时，把距离调和平均数作为小区分群的附加准则。仿真结果表明，与传统的小区分群方案相比，新方案的吞吐量增加20%~30%，小区性能和系统整体性能都有提升。
為瞭降低5G繫統中超密度小區網絡的小區間榦擾(ICI)，提齣瞭一種基于小區分群的榦擾管理方案，其覈心思想是將宏小區覆蓋下的小小區分群，對群內榦擾和群間榦擾分彆採用基于多小區協作和頻域或時域的榦擾避免。針對小區分群的關鍵即榦擾權值的計算，提齣瞭一種基于用戶的信榦譟比(SINR)和榦擾洩露(SOIR)計算連續榦擾權值的方案，該權值不僅反映用戶間的榦擾關繫，而且自適應地調整榦擾用戶之間對資源的爭奪策略；同時，把距離調和平均數作為小區分群的附加準則。倣真結果錶明，與傳統的小區分群方案相比，新方案的吞吐量增加20%~30%，小區性能和繫統整體性能都有提升。
위료강저5G계통중초밀도소구망락적소구간간우(ICI)，제출료일충기우소구분군적간우관리방안，기핵심사상시장굉소구복개하적소소구분군，대군내간우화군간간우분별채용기우다소구협작화빈역혹시역적간우피면。침대소구분군적관건즉간우권치적계산，제출료일충기우용호적신간조비(SINR)화간우설로(SOIR)계산련속간우권치적방안，해권치불부반영용호간적간우관계，이차자괄응지조정간우용호지간대자원적쟁탈책략；동시，파거리조화평균수작위소구분군적부가준칙。방진결과표명，여전통적소구분군방안상비，신방안적탄토량증가20%~30%，소구성능화계통정체성능도유제승。
In ultra-dense small cell networks scenarios of 5G,in order to reduce the inter-cell interference (ICI),an interference management scheme based on cell clustering is proposed. The scheme starts by grouping these small cells overlaid under the macro cell into clusters,then mitigates the intra-cluster and inter-cluster interference based on multi-cell cooperation and interference avoidance in frequency or time domain respectively. For the key issue of cell clustering that is interference weight calculation,a new con-tinuous interference weight based on signal-to-interference-and-noise ratio( SINR) and signal-to-other-cell-interference ratio( SOIR) is presented. The weight not only reflects the interference relationships be-tween users,but also adaptively adjusts the strategy of resource contention between interfering users,moreo-ver,the additional selection criterion for cell clustering is proposed based on the harmonic mean of dis-tance . Simulation results show that the throughput of new scheme can be improved from 20% to 30% com-pared with that of the traditional cell clustering scheme,and the performance of cells and overall systems can be improved.
