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Degrees of freedom (DoF) gains are studied in wireless networks with cooperative transmission under a backhaul load constraint that limits the average number of messages that can be delivered from a centralized controller to base station…

Information Theory · Computer Science 2018-11-27 Meghana Bande , Aly El Gamal , Venugopal V. Veeravalli

The degrees of freedom (DoF) available for communication provides an analytically tractable way to characterize the information-theoretic capacity of interference channels. In this paper, the DoF of a K-user interference channel is studied…

Information Theory · Computer Science 2016-11-15 Aly El Gamal , V. Sreekanth Annapureddy , Venugopal V. Veeravalli

We study information theoretic models of interference networks that consist of K Base Station (BS) - Mobile Terminal (MT) pairs. Each BS is connected to the MT carrying the same index as well as L following MTs. We fix the value of L and…

Information Theory · Computer Science 2019-11-19 Manik Singhal , Tolunay Seyfi , Aly El Gamal

We study the symmetric degrees-of-freedom (DoF) of partially connected interference networks under linear coding strategies at transmitters without channel state information beyond topology. We assume that the receivers are equipped with…

Information Theory · Computer Science 2016-11-15 Heecheol Yang , Navid Naderializadeh , Amir Salman Avestimehr , Jungwoo Lee

We study the degrees of freedom (DoF) of cellular networks in which a full duplex (FD) base station (BS) equipped with multiple transmit and receive antennas communicates with multiple mobile users. We consider two different scenarios. In…

Information Theory · Computer Science 2016-11-18 Sang-Woon Jeon , Sung Ho Chae , Sung Hoon Lim

We explore the interplay between interference, cooperation and connectivity in heterogeneous wireless interference networks. Specifically, we consider a 4-user locally-connected interference network with pairwise clustered decoding and show…

Information Theory · Computer Science 2016-11-17 Chenwei Wang , Syed A. Jafar , Shlomo Shamai , Michele Wigger

We characterize the degrees of freedom (DoF) of multi-way relay MIMO interference networks. In particular, we consider a wireless network consisting of 4 user nodes, each with M antennas, and one N-antenna relay node. In this network, each…

Information Theory · Computer Science 2014-01-23 Chenwei Wang

The considered problem is that of maximizing the degrees of freedom (DoF) in cellular downlink, under a backhaul load constraint that limits the number of messages that can be delivered from a centralized controller to the base station…

Information Theory · Computer Science 2014-01-16 Aly El Gamal , Venugopal V. Veeravalli

An uplink-downlink two-cell cellular network is studied in which the first base station (BS) with $M_1$ antennas receives independent messages from its $N_1$ serving users, while the second BS with $M_2$ antennas transmits independent…

Information Theory · Computer Science 2014-10-28 Sang-Woon Jeon , Changho Suh

A network consisting of a point-to-point (P2P) link and a multiple access channel (MAC) sharing the same medium is considered. The resulting interference network, with three transmitters and two receivers is studied from degrees of freedom…

Information Theory · Computer Science 2011-10-05 Anas Chaaban , Aydin Sezgin

Interference management in a three-user interference channel with alternating connectivity with only topological knowledge at the transmitters is considered. The network has a Wyner-type channel flavor, i.e., for each connectivity state the…

Information Theory · Computer Science 2013-10-10 Soheyl Gherekhloo , Anas Chaaban , Aydin Sezgin

This paper fully determines the degree-of-freedom (DoF) region of two-user interference channels with arbitrary number of transmit and receive antennas and isotropic fading, where the channel state information is available to the receivers…

Information Theory · Computer Science 2011-08-23 Yan Zhu , Dongning Guo

Degree of freedom (DoF) region provides an approximation of capacity region in high signal-to-noise ratio (SNR) regime, while sum DoF gives the scaling factor. In this correspondence, we analyse the DoF region and sum DoF for unicast…

Information Theory · Computer Science 2015-03-17 Feng Liu , Chung Chan , Ying Jun , Zhang

We explore the degrees of freedom (DoF) of three classes of finite state compound wireless networks in this paper. First, we study the multiple-input single-output (MISO) finite state compound broadcast channel (BC) with arbitrary number of…

Information Theory · Computer Science 2009-09-24 Tiangao Gou , Syed A. Jafar , Chenwei Wang

In this paper, we characterize the degrees of freedom (DoF) for $K $-user $M \times 1 $ multiple-input single-output interference channels with reconfigurable antennas which have multiple preset modes at the receivers, assuming linear…

Information Theory · Computer Science 2016-02-15 Heecheol Yang , Wonjae Shin , Jungwoo Lee

Interference alignment promises that, in Gaussian interference channels, each link can support half of a degree of freedom (DoF) per pair of transmit-receive antennas. However, in general, this result requires to precode the data bearing…

Information Theory · Computer Science 2014-02-14 Vasilis Ntranos , Mohammad Ali Maddah-Ali , Giuseppe Caire

We investigate the Degrees of Freedom (DoF) Region of a cellular network, where the cells can have overlapping areas. Within an overlapping area, the mobile users can access multiple base stations. We consider a case where there are two…

Information Theory · Computer Science 2011-03-02 Huarui Yin , Lei , Ke , Zhengdao Wang

This paper investigates the symmetric degrees of freedom (DoF) of MIMO cellular networks with G cells and K users per cell, having N antennas at each base station and M antennas at each user. In particular, we investigate achievability…

Information Theory · Computer Science 2013-12-11 Gokul Sridharan , Wei Yu

We study the degrees of freedom (DoF) regions of two-user multiple-input multiple-output (MIMO) Z and full interference channels in this paper. We assume that the receivers always have perfect channel state information. We derive the DoF…

Information Theory · Computer Science 2010-03-23 Lei Ke , Zhengdao Wang

We study the problem of interference management in fast fading wireless networks, in which the transmitters are only aware of network topology. We consider a class of retransmission-based schemes, where transmitters in the network are only…

Information Theory · Computer Science 2015-02-12 Navid Naderializadeh , Aly El Gamal , A. Salman Avestimehr
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