• 沒有找到結果。

Considering RSPMP-RS with nonzero ²b,r and ²r,s, an equivalent one is written below

And Lagrangian associated with (9.24) is given by

L = prX

Following similar procedure as APPENDIX A, Lagrangian zero derivative condition

of (9.24) imply that

Wri = Πi ÃX

R

i¡h¯Hbi,ri+ ebi,ri¢H!

²b,r→0

≈ Πi ÃX

R

i

!

Hbi,ri (9.26)

where Πi , µ

σ2I + σ2P

R

PN m=1

λm,khri,umhHri,um

−1 , and

i , Ã

λi,kmHi,iw˜ri

r0 mi,i PN

m=1,m6=i

λm,khri,umhHri,umWrihbi,ri − Wrihbi,ri

!

Bibliography

[1] R. Irmer, H. Droste, P. Marsch, M. Grieger, G. Fettweis, S. Brueck, H.-P. Mayer, L. Thiele, and V. Jungnickel, “Coordinated multipoint: Concepts, performance, and field trial results,” Communications Magazine, IEEE, vol. 49, no. 2, pp. 102 –111, february 2011.

[2] Wei Yu and T. Lan, “Transmitter optimization for the multi-antenna downlink with per-antenna power constraints,” Signal Processing, IEEE Transactions on, vol. 55, no. 6, pp. 2646 –2660, june 2007.

[3] H. Dahrouj and Wei Yu, “Coordinated beamforming for the multicell multi-antenna wireless system,” Wireless Communications, IEEE Transactions on, vol. 9, no. 5, pp. 1748 –1759, may 2010.

[4] G. Caire, S.A. Ramprashad, and H.C. Papadopoulos, “Rethinking network mimo:

Cost of csit, performance analysis, and architecture comparisons,” in Information Theory and Applications Workshop (ITA), 2010, 31 2010-feb. 5 2010, pp. 1 –10.

[5] H. Huang, M. Trivellato, A. Hottinen, M. Shafi, P. Smith, and R. Valenzuela,

“Increasing downlink cellular throughput with limited network mimo coordination,”

Wireless Communications, IEEE Transactions on, vol. 8, no. 6, pp. 2983 –2989, june 2009.

[6] Li-Chun Wang and Chu-Jung Yeh, “3-cell network mimo architectures with sector-ization and fractional frequency reuse,” Selected Areas in Communications, IEEE Journal on, vol. 29, no. 6, pp. 1185 –1199, june 2011.

[7] R.L. Batista, R.B. dos Santos, T.F. Maciel, W.C. Freitas, and F.R.P. Cavalcanti,

“Performance evaluation for resource allocation algorithms in comp systems,” in Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 IEEE 72nd, sept.

2010, pp. 1 –5.

[8] A. Papadogiannis, H.J. Bang, D. Gesbert, and E. Hardouin, “Efficient selective feedback design for multicell cooperative networks,” Vehicular Technology, IEEE Transactions on, vol. 60, no. 1, pp. 196 –205, jan. 2011.

[9] Vincent Kotzsch and Gerhard Fettweis, “On synchronization requirements and performance limitations for comp systems in large cells,” in Multi-Carrier Systems Solutions (MC-SS), 2011 8th International Workshop on, may 2011, pp. 1 –5.

[10] J. N. Laneman, D. N. C. Tse, and G. W. Wornell, “Cooperative diversity in wireless networks: Efficient protocols and outage behavior,” IEEE Trans. Inform. Theory, vol. 50, no. 12, pp. 3062–3080, Dec. 2004.

[11] Kan Zheng, Bin Fan, Zhangchao Ma, Guangyi Liu, Xiaodong Shen, and Wenbo Wang, “Multihop cellular networks toward lte-advanced,” Vehicular Technology Magazine, IEEE, vol. 4, no. 3, pp. 40 –47, sept. 2009.

[12] Jianhua Zhang, Guangyi Liu, Fenghua Zhang, Lei Tian, Nan Sheng, and Ping Zhang, “Advanced international communications,” Vehicular Technology Magazine, IEEE, vol. 6, no. 2, pp. 92 –100, june 2011.

[13] V. S andtencel, A. Mu andller, and P. Frank, “Lte advanced-a further evolutionary step for next generation mobile networks,” in Radioelektronika (RADIOELEK-TRONIKA), 2010 20th International Conference, april 2010, pp. 1 –5.

[14] R.A. DiFazio and P.J. Pietraski, “The bandwidth crunch: Can wireless technology meet the skyrocketing demand for mobile data?,” in Systems, Applications and Technology Conference (LISAT), 2011 IEEE Long Island, may 2011, pp. 1 –6.

[15] N. Jindal, “Mimo broadcast channels with finite-rate feedback,” Information The-ory, IEEE Transactions on, vol. 52, no. 11, pp. 5045 –5060, nov. 2006.

[16] M. Botros and T.N. Davidson, “Convex conic formulations of robust downlink precoder designs with quality of service constraints,” Selected Topics in Signal Processing, IEEE Journal of, vol. 1, no. 4, pp. 714 –724, dec. 2007.

[17] N. Vucic and H. Boche, “Robust qos-constrained optimization of downlink multiuser miso systems,” Signal Processing, IEEE Transactions on, vol. 57, no. 2, pp. 714 –725, feb. 2009.

[18] A. Tajer, N. Prasad, and Xiaodong Wang, “Robust linear precoder design for multi-cell downlink transmission,” Signal Processing, IEEE Transactions on, vol. 59, no.

1, pp. 235 –251, jan. 2011.

[19] M. Shenouda and T.N. Davidson, “On the design of linear transceivers for mul-tiuser systems with channel uncertainty,” Selected Areas in Communications, IEEE Journal on, vol. 26, no. 6, pp. 1015 –1024, august 2008.

[20] Yue Rong, S.A. Vorobyov, and A.B. Gershman, “Robust linear receivers for mul-tiaccess space-time block-coded mimo systems: a probabilistically constrained ap-proach,” Selected Areas in Communications, IEEE Journal on, vol. 24, no. 8, pp.

1560 –1570, aug. 2006.

[21] M. Shenouda and T.N. Davidson, “On the design of linear transceivers for mul-tiuser systems with channel uncertainty,” Selected Areas in Communications, IEEE Journal on, vol. 26, no. 6, pp. 1015 –1024, august 2008.

[22] Wei Yu, G. Ginis, and J.M. Cioffi, “Distributed multiuser power control for digital subscriber lines,” Selected Areas in Communications, IEEE Journal on, vol. 20, no.

5, pp. 1105 –1115, jun 2002.

[23] P. Rost, G. Fettweis, and J.N. Laneman, “Opportunities, constraints, and benefits of relaying in the presence of interference,” in Communications, 2009. ICC ’09.

IEEE International Conference on, june 2009, pp. 1 –5.

[24] M. Costa, “Writing on dirty paper (corresp.),” Information Theory, IEEE Trans-actions on, vol. 29, no. 3, pp. 439 – 441, may 1983.

[25] Te Han and K. Kobayashi, “A new achievable rate region for the interference channel,” Information Theory, IEEE Transactions on, vol. 27, no. 1, pp. 49 – 60, jan 1981.

[26] D. Ponukumati, Feifei Gao, and Lisheng Fan, “Robust general rank precoding design for amplify-and-forward relay network,” in GLOBECOM 2010, 2010 IEEE Global Telecommunications Conference, dec. 2010, pp. 1 –5.

[27] B.K. Chalise and L. Vandendorpe, “Optimization of mimo relays for multipoint-to-multipoint communications: Nonrobust and robust designs,” Signal Processing, IEEE Transactions on, vol. 58, no. 12, pp. 6355 –6368, dec. 2010.

[28] S. Boyd and L. Vandenberghe, “Convex optimization,” Cambridge University Press, 2004.

[29] Zhi quan Luo, Wing kin Ma, A.M.-C. So, Yinyu Ye, and Shuzhong Zhang, “Semidef-inite relaxation of quadratic optimization problems,” Signal Processing Magazine, IEEE, vol. 27, no. 3, pp. 20 –34, may 2010.

[30] A. Wiesel, Y. C. Eldar, and S. Shamai, “Linear precoding via conic optimization for fixed MIMO receivers,” IEEE Trans. Signal Process., vol. 54, no. 1, pp. 161–176, Jan. 2006.

[31] M. Grant and S. Boyd, “CVX: Matlab software for disciplined convex programming, version 1.21,” http://cvxr.com/cvx, Feb. 2011.

[32] G. Zheng, K.-K. Wong, and T.-S. Ng, “Robust linear MIMO in the downlink:

A worst-case optimization with ellipsoidal uncertainty regions,” EURASIP J. on Appl. Signal Process., vol. 2008, pp. 1–15, June 2008.

[33] K.-Y. Wang, T.-H. Chang, W.-K. Ma, and C.-Y. Chi, “A semidefinite relaxation based conservative approach to robust transmit beamforming with probabilistic SINR constraints,” in Proc. EUSIPCO, Aalborg, Denmark, Aug. 2010.

[34] T.-H. Chang, W.-K. Ma, and C.-Y. Chi, “On the optimality of semidefinite re-laxation for robust worst-case SINR constrained multiuser transmit beamforming,”

Technical report, National Chin Hwa University, Taiwan.

[35] J. F. Sturm, “Using SeDuMi 1.02, a MATLAB Toolbox for optimization over symmetric cones,,” Optimization Methods and Software, vol. 11-12, pp. 625–653, 1999.

[36] S.-J. Kim, A. Magnani, A. Mutapcic, S. P. Boyd, and Z.-Q. Luo, “Robust beam-forming via worst-case SINR maximization,” IEEE Trans. Signal Process., vol. 56, no. 4, pp. 1539–1547, April 2008.

[37] V. HAvary-Nassab, S. Shahbazpanahi, A. Grami, and Z.-Q. 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.

[38] R.D. Yates, “A framework for uplink power control in cellular radio systems,” IEEE J. Sel. Areas Comm., vol. 13, no. 7, pp. 1341–1347, Sept. 1995.

[39] F.-C. Zheng, A.G. Burr, and S. Olafsson, “Near-optimum detection for distributed space-time block coding under imperfect synchronization,” Communications, IEEE Transactions on, vol. 56, no. 11, pp. 1795 –1799, november 2008.

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