Diversity

Low-density graph codes for coded cooperation on slow fading relay channels

We study Low-Density Parity-Check (LDPC) codes with iterative decoding on block-fading (BF) Relay Channels. We consider two users that employ coded cooperation, a variant of decode-and-forward with a smaller outage probability than the latter. An …

Precoding for coded communication on block fading channels and cooperative communications

We study precoding for the outage probability minimization of block fading (BF) channels and BF relay channels. Recently, an upper bound on the outage probability with precoding was established for BF channels, but only for high instantaneous SNR. …

Reliable MIMO communication between firefighters equipped with wearable antennas and a base station using space-time codes

Off-body wireless data communication using textile antennas integrated into clothing increases the safety of rescue workers operating in an indoor environment as vital information can be communicated to the command station. The indoor radio …

Design of diversity-achieving LDPC codes for H-ARQ with cross-packet channel coding

In wireless scenarios an effective protocol to increase the reliability for time-varying channels is the hybrid automatic repeat request (H-ARQ). The H-ARQ scheme with cross-packet channel coding (CPC) is a recently published extension of H-ARQ with …

Dynamic link performance analysis of a rescue worker's off-body communication system using integrated textile antennas

The performance of wireless data communication for fully equipped firemen walking indoors and communicating through textile patch antennas integrated into their clothing is evaluated. The small-scale fading experienced in the building is …

Rotated modulations for outage probability minimization: a fading space approach

The outage probability limit is a fundamental lower bound on the word error rate of coded communications systems. It is mainly determined by two parameters: the diversity order and the coding gain. With linear precoding, the maximum achievable coding …

Wireless communication for firefighters using dual-polarized textile antennas integrated in their garment

A compact wearable antenna system, completely made out of textile materials for integration into protective garments, is proposed. The system implements combined pattern and polarization diversity to improve the quality of the communication link. The …

A wireless off-body communication link with receive diversity

The performance of wireless data communication for fully equipped firemen walking indoors and communicating through textile patch antennas integrated into their clothing is evaluated. The small-scale fading experienced in the building is …

Application of channel models to indoor off-body wireless MIMO communication with textile antennas

Off-body data communication for firemen and other rescue workers is an important area of development. The communication with a moving person in an indoor environment can be very unreliable due to the channel fading. By transmitting and receiving …

Low-density parity-check coding for block fading relay channels

We study low-density parity-check (LDPC) codes with iterative decoding on block fading (BF) Relay Channels. We use coded cooperation, a variant of decode-and-forward with a smaller outage probability than the latter. We derive a new code structure by …