  This paper presents secrecy analyses of a full-duplex MIMOME network which
consists of two full-duplex multi-antenna users (Alice and Bob) and an
arbitrarily located multi-antenna eavesdropper (Eve). The paper assumes that
Eve's channel state information (CSI) is completely unknown to Alice and Bob
except for a small radius of secured zone. The first part of this paper aims to
optimize the powers of jamming noises from both users. To handle Eve's CSI
being unknown to users, the focus is placed on Eve at the most harmful
location, and the large matrix theory is applied to yield a hardened secrecy
rate to work on. The performance gain of the power optimization in terms of
maximum tolerable number of antennas on Eve is shown to be significant. The
second part of this paper shows two analyses of anti-eavesdropping channel
estimation (ANECE) that can better handle Eve with any number of antennas. One
analysis assumes that Eve has a prior statistical knowledge of its CSI, which
yields lower and upper bounds on secure degrees of freedom of the system as
functions of the number (N) of antennas on Eve and the size (K) of information
packet. The second analysis assumes that Eve does not have any prior knowledge
of its CSI but performs blind detection of information, which yields an
approximate secrecy rate for the case of K being larger than N.
