This paper is focused on applying a polarization multiplex to passive optical networks double their transmission bandwidth without significant changes in the distribution network. Although multiplexes are already employed for high-speed transport with digital signal processing and coherent detection, we propose system that could be used existing older using dynamic controller combination wavele...

There has been a significant improvement in high-speed electronics and optical components over the past few years, and this is one of the key enabling factors for high data rate transmission. Moreover, multilevel modulation formats, which encode information onto the carrier’s amplitude and phase, are necessary to increase the spectral efficiency of communication systems. For short-haul low cost...

Reliable communication over the discrete input and continuous output noncoherent MIMO Rayleigh fading channel is considered when the SNR per degree of freedom is low. The input constellations are required to satisfy peak and average power constraints. When the peak-to-average power is constrained and in the low SNR regime, the mutual information upto second order in SNR is maximized jointly ove...

| Coded modulation for noncoherent transmission over slowly time{variant at fading channels without channel state information is considered. We focus on di erentially encoded M{ary PSK with multiple{symbol di erential detection (MSDD). Interleaving of blocks of symbols is used as a compromise between the con icting requirements of exploiting the channel coherence time and providing diversity fo...

An analytical framework for noncoherent decision feedback detection is introduced while considering nonorthogonal binary modulation (NBM) over the synchronous Gaussian K-user channel. Following the key idea of noncoherent decorrelating decision feedback detection (NC-DDFD) proposed in [1], a K-parameter class of NC-DDFDs is defined. The symmetric energy measure is defined as the worst-case (ove...

We develop the minimum mean-squared-error (MMSE) multiuser generalized detector for nonorthogonal multipulse modulation in wireless sensor networks employed by remote sensing systems over the noncoherent additive white Gaussian noise channel. The generalized detector (GD) is constructed based on the generalized approach to signal processing in the presence of noise. We analyze the asymptotic pe...