7 problems

Let $N$ be an even positive integer. An asynchronous channel-hopping sequence is a channel-hopping sequence without time synchronization, with minimum conditional time to rendezvou…

The two approximated systems have throughput regions determined by the feasible operating parameters and their achievable primary and secondary throughputs. Throughput-region conta…

Let the action space of the secondary user (SU) be $A=\{a:1\ (\operatorname{TR}),0\ (\operatorname{TS})\}$, where TR denotes simultaneous transmission and reception and TS denotes…

Let $p_t$ denote the transmission probability of a secondary transmitter and let $P_s$ denote the transmit power of the secondary transmitter in the case $M>2$, where $M$ is the ba…

The simulations compare three video-transmission schemes in cognitive-radio networks while varying the sensing-error parameters $\epsilon_n$ and $\delta_n$, and observe that averag…

Common-message splitting conjecture. Splitting the common (forwarding) message further into two parts is not necessary for the CRC.

Let $M_{r,p}$ denote the number of primary-receiver antennas, let $P_t$ be the secondary transmitter's power, and consider the hybrid D-SVD/P-SVD algorithm together with the D-SVD…