[1] J. N. Laneman, D. N. C. Tse, and G. W.Wornell, “Cooperative diversity
in wireless networks: Efficient protocols and outage behavior,” IEEE
Trans. Inf. Theory, vol. 50, no. 12, pp. 3062–3080, Dec. 2004.
[2] A. Sendonaris, E. Erkip, and B. Aazhang, “User cooperation diversity.
Part I. System description,” IEEE Trans. Commun., vol. 51, no. 11, pp.
1927–1938, Nov. 2003.
[3] B. Rankov and A. Wittneben, “Spectral efficient protocols for half-duplex
fading relay channels,” IEEE J. Sel. Areas Commun., vol. 25, no.
2, pp. 379–389, Feb. 2007.
[4] S. J. Kim, P. Mitran, and V. Tarokh, “Performance bounds for bidirectional
coded cooperation protocols,” IEEE Trans. Inf. Theory, vol. 54,
no. 11, pp. 5235–5241, Nov. 2008.
[5] P. Popovski and H. Yomo, “Physical network coding in two-way
wireless relay channels,” in Proc. IEEE Int. Conf. Commun. (ICC),
Glasgow, Scotland, U.K., Jun. 2007, pp. 707–712.
[6] C. Hausl and J. Hagenauer, “Iterative network and channel decoding for
the two-way relay channel,” in Proc. IEEE Int. Conf. Commun. (ICC),
Istanbul, Turkey, Jun. 2006, pp. 1568–1573.
[7] A. Bletsas, A. Khisti, D. P. Reed, and A. Lippman, “A simple cooperative
diversity method based on network path selection,” IEEE J. Sel.
Areas Commun., vol. 24, no. 3, pp. 659–672, Mar. 2006.
[8] T. J. Oechtering and H. Boche, “Bidirectional regenerative half-duplex
relaying using relay selection,” IEEE Trans. Wireless Commun., vol. 7,
no. 5, pp. 1879–1888, May 2008.
[9] A. S. Ibrahim, A. K. Sadek, W. Su, and K. J. R. Liu, “Cooperative
communications with relay-selection: When to cooperate and whom
to cooperate with?,” IEEE Trans. Wireless Commun., vol. 7, no. 7, pp.
2814–2827, Jul. 2008.
[10] J. N. Laneman and G. W.Wornell, “Distributed space-time-coded protocols
for exploiting cooperative diversity in wireless networks,” IEEE
Trans. Inf. Theory, vol. 49, no. 10, pp. 2415–2425, Oct. 2003.
[11] P. A. Anghel and M. Kaveh, “On the performance of distributed spacetime
coding systems with one and two non-regenerative relays,” IEEE
Trans. Wireless Commun., vol. 5, no. 3, pp. 682–692, Mar. 2006.
[12] Y. Jing and B. Hassibi, “Distributed space-time coding in wireless
relay networks,” IEEE Trans. Wireless Commun., vol. 5, no. 12, pp.
3524–3536, Dec. 2006.
[13] B. Maham, A. Hjørungnes, and G. Abreu, “Distributed GABBA spacetime
codes in amplify-and-forward relay networks,” IEEE Trans.Wireless
Commun., vol. 8, no. 4, pp. 2036–2045, Apr. 2009.
[14] T. Cui, F. Gao, T. Ho, and A. Nallanathan, “Distributed space-time
coding for two-way wireless relay networks,” IEEE Trans. Signal
Process., vol. 57, no. 2, pp. 658–671, Feb. 2009.
[15] Z. Ding, W. H. Chin, and K. K. Leung, “Distributed beamforming
and power allocation for cooperative networks,” IEEE Trans. Wireless
Commun., vol. 7, no. 5, pp. 1817–1822, May 2008.
[16] R. Zhang, Y. C. Liang, and C. C. Chai, “Optimal beamforming for
two-way multi-antenna relay channel with analogue network coding,”
IEEE J. Sel. Areas Commun., vol. 27, no. 5, pp. 699–712, Jun. 2009.
[17] V. Havary-Nassab, S. Shahbazpanahi, A. Grami, and Z. Luo, “Distributed
beamforming for relay networks based on second-order statistics
of the channel state information,” IEEE Trans. Signal Process.,
vol. 56, no. 9, pp. 4306–4316, Sep. 2008.
[18] G. Zheng, K. Wong, A. Paulraj, and B. Ottersten, “Robust collaborative-
relay beamforming,” IEEE Trans. Signal Process., vol. 57, no. 8,
pp. 3130–3143, Aug. 2009.
[19] Y. Zhu, P. Kam, and Y. Xin, “Non-coherent detection for amplifyand-
forward relay systems in a Rayleigh fading environment,” in Proc.
IEEE Global Telecommun. Conf. (GLOBECOM),Wash., DC, 2007, pp.
1658–1662.
[20] Y. Zhao, R. Adve, and T. J. Lim, “Improving amplify-and-forward
relay networks: Optimal power allocation versus selection,” IEEE
Trans. Wireless Commun., vol. 6, no. 8, pp. 3114–3123, Aug. 2007.
[21] T. Q. S. Quek, M. Z. Win, H. Shin, and M. Chiani, “Optimal power
allocation for amplify-and-forward relay networks via conic programming,”
in Proc. IEEE Int. Conf. Commun. (ICC), Glasgow, Scotland,
U.K., Jun. 2007, pp. 5058–5063.
[22] M. Kobayashi and X. Mestre, “Impact of CSI on distributed space-time
coding in wireless relay networks,” IEEE Trans. Wireless Commun.,
vol. 8, no. 5, pp. 2580–2591, May 2009.
[23] B. Maham and A. Hjørungnes, “Opportunistic relaying through amplify-
and-forward distributed space-time codes with partial statistical
CSI at relays,” in Proc. 46th Ann. Allerton Conf. Commun., Contr.,
Comput., Monticello, IL, Sep. 2008, pp. 1004–1008.
[24] R. Vaze and R. W. Heath, On the Capacity and Diversity-Multiplexing
Tradeoff of the Two-Way Relay Channel [Online]. Available: http://
arxiv.org/abs/0810.3900v2 2008
[25] F. Gao, R. Zhang, and Y. C. Liang, “On channel estimation for
amplify-and-forward two-way relay networks,” in Proc. IEEE Global
Telecommun. Conf. (GLOBECOM), New Orleans, LA, 2008, pp. 1–5.
[26] Y. Jing and H. Jafarkhani, “Using orthogonal and quasi-orthogonal designs
in wireless relay networks,” IEEE Trans. Inf. Theory, vol. 53, no.
11, pp. 4106–4118, Nov. 2007.
[27] B. Hassibi and B. M. Hochwald, “High-rate codes that are linear in
space and time,” IEEE Trans. Inf. Theory, vol. 48, no. 7, pp. 1804–1824,
Jul. 2002.
[28] L. Zheng and D. N. C. Tse, “Diversity and multiplexing:Afundamental
tradeoff in multiple-antenna channels,” IEEE Trans. Inf. Theory, vol.
49, no. 5, pp. 1073–1096, May 2003.
[29] J. P. Crouzeix, J. A. Ferland, and S. Schaible, “Duality in generalized
linear fractional programming,” Math. Program., vol. 27, no. 3, pp.
342–354, 1983.
[30] J. P. Crouzeix, J. A. Ferland, and S. Schaible, “An algorithm for generalized
fractional programs,” J. Optimiz. Theory Appl., vol. 47, no. 1,
pp. 35–49, 1985.
[31] L. Gradshteyn and L. Ryzhik, Table of Integrals, Series and Products.
New York: Academic, 2004.