论文标题
分散的多运营商认知无线电资源分配：渐近分析
Decentralizing Multi-Operator Cognitive Radio Resource Allocation: An Asymptotic Analysis
论文作者
论文摘要
我们在认知无线电（CR）通信系统中解决了与现有主要运营商共享资源的认知无线电（CR）通信系统中资源分配（RA）的问题。众所周知，多个次级操作员RA问题特别具有挑战性，因为在优化问题中产生了操作员偶联的限制，这使得必要的不切实际的操作员信息交换所必需。在本文中，我们考虑了用于多手术器CR的卫星设置。在CR成熟度方案中，即二级用户密度正在增长但仍低于现有用户的时期，我们表明，实际上可以忽略操作员相互约束，从而使分布式（跨二级操作员）成为可能。此外，我们在分析上确定相互约束随着主要用户密度而消失。
We address the problem of resource allocation (RA) for spectrum underlay in a cognitive radio (CR) communication system with multiple secondary operators sharing resource with an incumbent primary operator. The multiple secondary operator RA problem is well known to be especially challenging because of the inter-operator coupling constraints arising in the optimization problem, which render impractical inter-operator information exchange necessary. In this paper, we consider a satellite setting for multi-operator CR. In the CR maturation regime, i.e., the period in which the secondary subscriber density is growing yet remains much below that of incumbent users, we show that in fact the inter-operator mutual constraints can be neglected, thus making distributed (across secondary operators) optimization possible. Furthermore, we establish analytically that the mutual constraints asymptotically vanish with the primary user density.
