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Numerical Results of Novel Half-Duplex Relaying Protocols Nikola Zlatanov University of British Columbia (UBC), Canada Joint work Robert Schober, Vahid Jamali, and Pater Popovski Nikola Zlatanov Numerical Results of Novel Half-Duplex Relaying

SLIDE 1

Numerical Results of Novel Half-Duplex Relaying Protocols

Nikola Zlatanov

University of British Columbia (UBC), Canada Joint work Robert Schober, Vahid Jamali, and Pater Popovski

Nikola Zlatanov Numerical Results of Novel Half-Duplex Relaying Protocols

SLIDE 2

Outline

Source Relay

Destinat.

X1 X2 Y1 Y2

We will present numerical results of three novel relaying protocols for the two-hop half-duplex (HD) relay channel. Protocol 1: Achieves the capacity of the two-hop HD relay channel in the absence of fading. Protocol 2: Improves the average achievable rate of the two-hop HD relay channel when fading is present. Protocol 3: Improves the outage probability of the two-hop HD relay channel when fading is present.

Nikola Zlatanov Numerical Results of Novel Half-Duplex Relaying Protocols

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Protocol 1

−10 −5 5 10 15 20 25 30 0.5 1 1.5 2 2.5 3 SNR in dB Rate (bits/use) Capacity Previous best known achievable rate

(a) AWGN

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

Pε Rate (bits/use)

Capacity Previous best known achievable rate

(b) BSC

N. Zlatanov, V. Jamali, and R. Schober, “Capacity of the Two-Hop

Half-Duplex Relay Channel,” Submitted to IEEE Trans. on Inform. Theory

Nikola Zlatanov Numerical Results of Novel Half-Duplex Relaying Protocols

SLIDE 4

Protocols 2 and 3

−5 5 10 15 20 25 30 1 2 3 4 5 SNR in dB Average rate (in bits/symb) Our protocol Previous protocol

(a) Protocol 2

10 20 30 40 50 10

−6

−4

−2

10 Outage probability SNR in dB Our protocol Previous protocol

(b) Protocol 3

N. Zlatanov, R. Schober, and P. Popovski, “Buffer-Aided Relaying with

Adaptive Link Selection,” IEEE J. Select. Areas Commun., vol. 31, pp. 1530–1542, Aug. 2013.

N. Zlatanov and R. Schober, “Buffer-Aided Relaying With Adaptive Link

Selection - Fixed and Mixed Rate Transmission,” IEEE Trans. Inform. Theory, vol. 59, pp. 2816–2840, May 2013.

Nikola Zlatanov Numerical Results of Novel Half-Duplex Relaying Protocols