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arXiv 1707.08802cs.ITmath.IT
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蜂窝系统中干扰源相关性对覆盖概率和覆盖率的影响

Impact of Correlation between Interferers on Coverage Probability and rate in Cellular Systems

Suman Kumar, Sheetal Kalyani

摘要:

当用户信道经历Nakagami-m衰落时,理论上比较了以下情况下的覆盖概率表达式:N个随机变量是独立的$η$ - $μ$随机变量(RV)。(ii)。N个标记是相关的$η$ - $μ$ RV。分析表明,当用户与其基站(BS)之间的信道形状参数不大于1时,相关干扰源存在时的覆盖概率大于或等于独立干扰源存在时的覆盖概率。此外,对以下情况进行比率比较:(i)。用户信道经历$η$ - $μ$ RV,并且$N$生成器是独立的$η$ - $μ$ RV。(ii)。N个标记是相关的$η$ - $μ$ RV。分析表明,在相关的干扰者的存在下的速率大于或等于在独立干扰者的存在下的速率。仿真结果与理论结果相吻合。我们的结果的效用进行了讨论。

英文摘要:

When the user channel experiences Nakagami-m fading, the coverage probability expressions are theoretically compared for the following cases: (i). The N interferers are independent $η$-$μ$ random variables (RVs). (ii). The N interferers are correlated $η$-$μ$ RVs. It is analytically shown that the coverage probability in the presence of correlated interferers is greater than or equal to the coverage probability in the presence of independent interferers when the shape parameter of the channel between the user and its base station (BS) is not greater than one. Further, rate is compared for the following cases: (i). The user channel experiences $η$-$μ$ RV and the $N$ interferers are independent $η$-$μ$ RVs. (ii). The N interferers are correlated $η$-$μ$ RVs. It is analytically shown that the rate in the presence of correlated interferers is greater than or equal to the rate in the presence of independent interferers. Simulation results are provided and these match with the obtained theoretical results. The utility of our results are also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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