Results 211 to 220 of about 1,869 (251)
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Successive cancellation for cyclic interference channels
2008 IEEE Information Theory Workshop, 2008The Chong-Motani-Garg inner bound for the two-user interference channel is generalized to a special case of many-user interference channels. By taking a geometric viewpoint and using rate-splitting arguments, it is shown that all operating points in the Chong-Motani-Garg inner bound allow decoding by successive cancellation at all receivers.
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Performance of cooperative CDMA with successive interference cancellation
2008 5th International Conference on Broadband Communications, Networks and Systems, 2008We investigate the BER and achievable rate of user cooperation schemes in practical uplink CDMA channels with multiple access interference (MAI). It is shown that when the system loading increases, cooperation alone becomes less effective if simple matched filters (MF) followed by combining from each partnerspsila signals are employed for obtaining ...
Indu Shakya +2 more
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DS/CDMA successive interference cancellation
Proceedings of IEEE 3rd International Symposium on Spread Spectrum Techniques and Applications (ISSSTA'94), 1995Conventional DS/CDMA detectors operate by enhancing a desired user while suppressing other users, considered as interference (multiple access interference, MAI) or noise. A different viewpoint is to consider other users not as noise but to jointly detect all users' signals (multiuser detection). This has significant potential of increasing capacity and
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Mitigating Error Propagation in Successive Interference Cancellation
IEICE Transactions on Communications, 2006In this letter, we propose a novel signal detection method for spatially multiplexed multiple input multiple output (MIMO) systems, based on the idea of ordered successive interference cancellation (OSIC). In the proposed method, we try every possible value as the first detected symbol instead of making a decision. Although the proposed method requires
Jaekwon Kim, Dong-Ho Kim, SangKyun Yun
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Successive Interference Cancellation in Device-to-Device Communications
2021Device-to-Device (D2D) communications is expected to gain importance in future cellular networks for spectrum efficiency. However, dealing with the interference in simultaneous D21) and cellular transmissions is a significant challenge. In this paper, the problem of optimal pairing of D2D and CU transmissions is addressed in order to control ...
Kılıç, Gökhan, Girici, Tolga
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A new successive interference cancellation for asynchronous CDMA
GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489), 2004This paper introduces a new multi-user detection method, successive interference cancellation based on the order of log-likelihood-ratio (LLR-SIC), for asynchronous code division multiple access (CDMA) systems. LLR-SIC operates on the fact that the most reliable user, i.e.
Xiaodong Ren +3 more
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Opportunistic Power Control for Successive Interference Cancellation
IEEE Communications Letters, 2011This letter proposes an opportunistic power control for increasing the transmission rate of a secondary transmitter (ST) in frequency reused scenario. The environments considered herein have multiple primary transmitter/receiver pairs and one secondary transmitter/receiver pair using the same frequency band.
Jang Y.-U., Jeong E.-R.
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Maximal Conditional Efficiency Successive Interference Cancellation
2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006Conditional asymptotic multi-user efficiency is introduced as a quantitative measure for comparing the performance of multi-user detectors that employ successive interference cancellation (SIC). For a given ordering of user signals, we derive the detector that achieves the maximum asymptotic conditional efficiency for each user among all possible SIC ...
Ananya Sen Gupta, Andrew C. Singer
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Successive interference cancellation for cooperative communication systems
Proceedings of the 2009 International Conference on Hybrid Information Technology, 2009In this paper, we analyze and simulate a successive interference cancellation (SIC) scheme for cooperative communication systems in wireless communication network. In the interference cancellation strategy, co-channel interference (CCI) is mitigated by zero forcing (ZF) or minimum mean square error (MMSE) receivers.
Eun Cheol Kim +6 more
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Towards collisions: An enhanced successive interference cancellation with asynchronism
2012 IEEE Global Communications Conference (GLOBECOM), 2012In this paper, we consider a hidden terminal scenario where two transmitters A and B, hidden to each other, wish to communicate to a common access point, AP. When a collision occurs at AP, due to the inherent asynchrony between the colliding packets, the mutual interference between them is effectively decreased.
Qiang Li 0009 +3 more
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