计算机科学 ›› 2016, Vol. 43 ›› Issue (2): 129-134.doi: 10.11896/j.issn.1002-137X.2016.02.029
刘锋,王媛媛,曾连荪
LIU Feng, WANG Yuan-yuan and ZENG Lian-sun
摘要： 研究了两个网络并存时的自由度:一个网络是点对点(PTP)信道,另一个网络是两用户的广播信道(BC)。根据两个网络之间可能存在的消息认知情况,考虑了4种系统模型:次网BC对主网PTP发送端无消息认知、次网PTP对主网BC发送端无消息认知、次网BC对主网PTP发送端有消息认知、次网PTP对主网BC发送端有消息认知。运用干扰对齐和干扰消除的方法对干扰进行了干扰管理,分析了可达自由度,并给出了自由度的外界。通过比较4种情况,发现当主网是PTP、次网是BC且次网认知主网发送端消息时获得的自由度区域最大。
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