In this paper a new adjacent channel interference (ACI) cancellation scheme for multi-channel signal reception with low-IF receivers is investigated through the experiment. In the low-IF receivers, the signal in the mirror frequency causes interference to the desired signal. In the proposed analog-digital signal processing scheme, channel selection is made by analog complex band pass filter and...

By applying interference-aware channel segregation based dynamic channel assignment (IACS-DCA) algorithm, each access point (AP) can use a channel with low co-channel interference (CCI) in a distributed manner. Interference environment may vary due to e.g., switching on/off of APs. Its adaptability to varying CCI environment has been left as an interesting study. In this paper, we investigate t...

A noninteracting quantum-dot arrays side coupled to a quantum wire is studied. Transport through the quantum wire is investigated by using a noninteracting Anderson tunneling Hamiltonian. The conductance at zero temperature develops an oscillating band with resonances and antiresonances due to constructive and destructive interference in the ballistic channel, respectively. Moreover, we have fo...

This paper adds to the understanding of the capacity region of the Gaussian interference channel. To this end, the capacity region of the one-sided Gaussian interference channel is first fully characterized. This is accomplished by introducing a new representation of the Han-Kobayashi region and providing a new outer bound on the capacity region of this channel which is tight both in the weak a...

While the best known outerbound for the K user interference channel states that there cannot be more than K/2 degrees of freedom, it has been conjectured that in general the constant interference channel with any number of users has only one degree of freedom. In this paper, we provide a toy example (with carefully selected propagation delays) to show how regardless of the number of interfering...

We consider the $K$ -user Multiple Input Output (MIMO) Gaussian interference channel with notation="LaTeX">$M$ antennas at each transmitter and notation="LaTeX">$N$ receiver. It is assumed that coefficients are constant real numbers a...

In this paper we explore the information-theoretic aspects of interference alignment and its relation to channel state information (CSI). For the K−user interference channel using different changing patterns between different users, we propose several methods to align some parts of interferences and to increase what is achieved by time sharing method. For more practical case when all the channe...

Wtdeband code -dzvzsion multiple access (CD MA) systems are interference-limzted, and so must utilize some form of interference reductzon in order to maintain an acceptable qualtty of service and capacity. In this paper, cochannel interference for several different CDMA architectures is evaluated. For wideband CDMA systems such as WCDMA and cdma2000 with carrier st ealing, co-channel ~nterferen...

The capacity of the multiple-access channel with any distribution of messages among the transmitting nodes was determined by Han in 1979 and the expression of the capacity region contains a number of rate bounds and that grows exponentially with the number of messages. We derive a more compact expression for the capacity region of this channel in which the number of rate bounds depends on the d...

We investigate the efficiency of interference alignment for 2 × 2 × 2 interference networks formed by concatenation of two user interference channels under the assumption of imperfect channel state information. We show that, as a result of cumulative noise in zero forcing receivers, aligned interference neutralisation is not practical when perfect channel state information is not available. We ...